Flashcards

How to Use Flashcards
Students and teachers have been asking for years for a copy of my flashcards and finally I have gotten to the point where I’m ready to share them. For over 20 years, I’ve used these flashcards to train my team, and now they’re available for purchase due to popular demand. Each card includes a QR code linking to a page on MathNinja.org with video explanations (some videos are still in progress and will be added as completed).

There are nearly 300 cards (Playing Card Size) that are categorized very specifically. Green, blue, and Red. Each card has a QR code linking to my website where I will be including videos and explanations of each card and how to do it (this is a work in progress) The set is organized where there first 150 or so cards are for Number Sense (some for both) with the rest being for General Math and Calculator Application. Each card shows what test you would normally see the flashcard (i.e. Number Sense, Calculator, or General Math) Included in the set is the most important cards to learn for the High School Number Sense Test. If you dedicated yourself to learning these cards you will skyrocket.

Card Organization by Color and Grade Level:

Green: First set to learn (5th and 6th grade)
Blue: Second set to learn (7th grade)
Red: Final set to learn (8th grade)

Card Categories:

Cards 1–175: Number Sense
Cards 176–277: General Math and Calculator Applications
Cards 278–296: High School Number Sense

Purchase and Resources:
Visit MathNinja.org/shop to buy flashcards, books, videos, or online classes. For inquiries, email in**@*******ja.org

Flashcards 1-50

1 https://mathninja.org/squares/ 2 https://mathninja.org/squares/ 3 https://mathninja.org/squares/ 4 https://mathninja.org/squares/ 5 https://mathninja.org/squares/ 6 https://mathninja.org/squares/ 7 https://mathninja.org/squares/ 8 https://mathninja.org/squares/ 9 https://mathninja.org/squares/ 10 https://mathninja.org/squares/ 11 https://mathninja.org/squares/ 12 https://mathninja.org/squares/ 13 https://mathninja.org/squares/ 14 https://mathninja.org/squares/ 15 https://mathninja.org/squares/ 16 https://mathninja.org/squares/ 17 https://mathninja.org/squares/ 18 https://mathninja.org/squares/ 19 https://mathninja.org/squares/ 20 https://mathninja.org/squares/ 21 https://mathninja.org/squares/ 22 https://mathninja.org/squares/ 23 https://mathninja.org/squares/ 24 https://mathninja.org/squares/ 25 https://mathninja.org/squares/ 26 https://mathninja.org/cubes/ 27 https://mathninja.org/cubes/ 28 …

Flashcards 101-150

101 https://mathninja.org/unit-conversions/ 102 https://mathninja.org/red-book-page-16-approximating-powers-of-e/ 103 https://mathninja.org/red-book-page-19-angle-of-clock-hands/ 104 https://mathninja.org/green-book-page-27-multiplying-by-3367/ 105 https://mathninja.org/red-book-page-27-111-times-b-divided-27/ 106 https://mathninja.org/prime-factorizations-special-numbers/ 107 https://mathninja.org/polygonal-numbers/ 108 https://mathninja.org/green-book-page-43-set-theory/ 109 https://mathninja.org/blue-book-page-48-permutations-and-combinations-of-sets/ 110 https://mathninja.org/blue-book-page-48-permutations-and-combinations-of-sets/ 111 https://mathninja.org/arrangements-of-circle/ 112 https://mathninja.org/blue-book-page-50-the-number-of-distinct-letter-arrangements-of-a-word/ 113 https://mathninja.org/red-book-page-44-number-of-diagonals-of-a-polygon/ 114 https://mathninja.org/red-book-page-14-sum-of-first-n-consecutive-squares/ 115 https://mathninja.org/blue-book-page-32-the-sum-of-first-n-cubes/ 116 QR does not work on chromebook 117 https://mathninja.org/red-book-page-15-sum-of-a-fibonacci-sequence/ 118 https://mathninja.org/green-book-page-57-number-of-divisors/ 119 https://mathninja.org/blue-book-page-34-the-sum-of-the-powers-of-a-number/ 120 https://mathninja.org/blue-book-page-35-the-sum-of-the-positive-integral-divisors/ 121 https://mathninja.org/red-book-page-25-subtracting-fractions-a-over-b-minus-3a-plus-1-over-3b-minus-1/ 122 https://mathninja.org/blue-book-page-36-the-number-of-positive-integral-divisors-of-n-relatively-prime-to-n/ 123 https://mathninja.org/red-book-page-22-sum-of-consecutive-squares/ 124 https://mathninja.org/red-book-page-23-difference-of-consecutive-cubes/ 125 https://mathninja.org/blue-book-page-65-work-formula-and-harmonic-mean/ …

Flashcards 151-200

151 https://mathninja.org/square-roots/ 152 https://mathninja.org/square-roots/ 153 https://mathninja.org/unit-conversions/ 154 https://mathninja.org/unit-conversions/ 155 https://mathninja.org/unit-conversions/ 156 https://mathninja.org/green-book-page-50-powers-of-i/ 157 https://mathninja.org/sin-cos-tan-0-30-45-60-90/ 158 https://mathninja.org/blue-book-page-30-the-sum-of-the-nth-triangular-number-and-the-nth-pentagonal-number 159 https://mathninja.org/red-book-page-11-the-sum-of-two-consecutive-triangular-numbers/ 160 https://mathninja.org/red-book-page-12-sum-of-the-first-consecutive-triangular-numbers/ 161 https://mathninja.org/red-book-page-13-sum-of-the-reciprocals-of-the-t-triangular-numbers/ 162 https://mathninja.org/blue-book-page-31-the-sum-of-consecutive-pentagonal-numbers/ 163 https://mathninja.org/blue-book-page-33-the-quotient-of-the-consecutive-cubes-and-consecutive-numbers/ 164 https://mathninja.org/red-book-page-45-sum-of-the-reciprocals-of-the-divisors-of-a-number/ 165 https://mathninja.org/root-mean-square-or-quadratic-mean/ 166 https://mathninja.org/a-cubed-b-cubed/ 167 https://mathninja.org/red-book-page-33-finding-difference-of-a-and-b-given-sum-and-product/ 168 https://mathninja.org/red-book-page-34-product-and-sum-of-coefficients-of-a-polynomial/ 169 https://mathninja.org/red-book-page-36-sum-of-the-squares-of-the-roots/ 170 https://mathninja.org/red-book-page-37-harmonic-mean-of-the-roots/ 171 https://mathninja.org/red-book-page-59-simplifying-logarithms/ 172 https://mathninja.org/equation-of-a-circle/ 173 https://mathninja.org/red-book-page-46-sum-of-alternating-squares/ 174 https://mathninja.org/square-roots/ 175 https://mathninja.org/red-book-page-47-shortest-distance-from-a-point-to-a-line/ 176 https://mathninja.org/number-of-sg-on-calculator-test/ 177 https://mathninja.org/compound-interest/ 178 …

Flashcards 201-250

201 https://mathninja.org/angle-measure-of-circle-given-chords-secants-and-tangents/ 202 https://mathninja.org/inersecting-chords-secants-and-tangents/ 203 https://mathninja.org/inersecting-chords-secants-and-tangents/ 204 https://mathninja.org/names-of-angles-in-parallel-lines-and-transversal/ 205 https://mathninja.org/names-of-angles-in-parallel-lines-and-transversal/ 206 https://mathninja.org/direct-inverse-and-joint-variations/ 207 https://mathninja.org/standard-form-and-slope-intercept-form-of-linear-equations/ 208 https://mathninja.org/rotations-90-degrees-clockwise-or-counterclockwise/ 209 https://mathninja.org/words-for-x-and-y/ 210 https://mathninja.org/words-for-slope/ 211 https://mathninja.org/x-and-y-intercepts/ 212 https://mathninja.org/parent-functions-of-linear-quadratics-and-exponentials/ 213 https://mathninja.org/exponential-growth-and-decay/ 214 https://mathninja.org/largest-unattainable-sum/ 215 https://mathninja.org/box-and-whisker-graphs/ 216 https://mathninja.org/box-and-whisker-graphs/ 217 https://mathninja.org/box-and-whisker-graphs/ 218 https://mathninja.org/mean-absolute-deviation/ 219 https://mathninja.org/symbols-for-inequalities/ 220 https://mathninja.org/current-problems/ 221 https://mathninja.org/Algebra-Lesson-19-Mixture-Equations/ 222 https://mathninja.org/memorizing-alphabetic-position/ 223 https://mathninja.org/cardinal-ordinal-and-nominal-numbers/ 224 https://mathninja.org/continuous-interest/ 225 https://mathninja.org/area-of-regular-polygon-given-apothem/ 226 https://mathninja.org/picks-formula/ 227 https://mathninja.org/geometric-mean-of-triangles/ 228 …

Flashcards 251-296

251 https://mathninja.org/volume-and-surface-area-of-frustum/ 252 https://mathninja.org/volume-of-rectangular-prism-given-areas-of-sides/ 253 https://mathninja.org/special-angles/ 254 https://mathninja.org/special-angles/ 255 https://mathninja.org/incenter/ 256 https://mathninja.org/centroid/ 257 https://mathninja.org/circumcenter/ 258 https://mathninja.org/orthocenter/ 259 https://mathninja.org/standard-form-of-circles-and-ellipses/ 260 https://mathninja.org/triple-venn-diagrams/ 261 https://mathninja.org/determinant-of-matrix/ 262 https://mathninja.org/inverse-of-matrix/ 263 https://mathninja.org/asymptotes/ 264 https://mathninja.org/absolute-value-equations/ 265 https://mathninja.org/conditional-converse-inverse-and-contrapositive/ 266 https://mathninja.org/find-quadratic-equation-given-first-4-terms/ 267 https://mathninja.org/work-formula-part-2/ 268 https://mathninja.org/numbers-with-odd-number-of-factors/ 269 https://mathninja.org/number-of-even-or-odd-factors/ 270 https://mathninja.org/perfect-square-factors/ 271 https://mathninja.org/permute-alphabetically/ 272 https://mathninja.org/nested-square-roots/ 273 https://mathninja.org/map-coloring/ 274 https://mathninja.org/blue-book-page-63-sum-product-of-the-roots-for-cubic-and-quartic-equations/ 275 https://mathninja.org/graphs-of-abs-x-abs-y-z/ 276 https://mathninja.org/largest-inscribed-rectangle/ 277 https://mathninja.org/Algebra-Lesson-20-Distance-Word-Problems/ 278 …

Flashcards 51 – 100

51 https://mathninja.org/gallons-to-inches-cubed/ 52 https://mathninja.org/unit-conversions/ 53 https://mathninja.org/green-book-page-64-mi-hrft-sec/ 54 https://mathninja.org/fahrenheit-to-celsius/ 55 https://mathninja.org/unit-conversions/ 56 https://mathninja.org/names-of-polygons/ 57 https://mathninja.org/names-of-polygons/ 58 https://mathninja.org/platonic-solids/ 59 https://mathninja.org/green-book-page-49-multiplying-power-of-pi/ 60 https://mathninja.org/red-book-page-10-converting-between-radians-and-degrees/ 61 https://mathninja.org/prime-factorizations-special-numbers/ 62 https://mathninja.org/green-book-page-63-sum-of-consecutive-integers/ 63 https://mathninja.org/green-book-page-63-sum-of-consecutive-integers/ 64 https://mathninja.org/green-book-page-63-sum-of-consecutive-integers/ 65 https://mathninja.org/polygonal-numbers/ 66 https://mathninja.org/green-book-page-43-set-theory/ 67 https://mathninja.org/green-book-page-43-set-theory/ 68 https://mathninja.org/green-book-page-42-union-non-union/ 69 https://mathninja.org/green-book-page-32-greatest-common-factor/ 70 https://mathninja.org/red-book-page-6-product-of-the-gcf-and-lcm/ 71 https://mathninja.org/green-book-page-30-difference-of-two-squares/ 72 https://mathninja.org/area-of-a-triangle-and-trapezoid/ 73 https://mathninja.org/area-and-circumference-of-circles/ 74 https://mathninja.org/blue-book-page-54-area-of-rhombi-and-equilateral-triangles/ 75 https://mathninja.org/blue-book-page-54-area-of-rhombi-and-equilateral-triangles/ 76 https://mathninja.org/additive-and-multiplicative-inverse/ 77 https://mathninja.org/complimentary-and-supplementary/ 78 …