Cubes Near 100 Worksheet
The trick (Yavadunam): Left part: the number + twice the difference. Middle part: 3 × the difference squared. Right part: the difference cubed. Each right-hand part has as many digits as the base has zeros — carry the extra, borrow if a part is negative.
NameDateTime takenScore ___ / 40
- 1.985³ =
- 2.991³ =
- 3.94³ =
- 4.995³ =
- 5.987³ =
- 6.95³ =
- 7.999³ =
- 8.1005³ =
- 9.98³ =
- 10.1003³ =
- 11.107³ =
- 12.97³ =
- 13.987³ =
- 14.99³ =
- 15.103³ =
- 16.985³ =
- 17.91³ =
- 18.93³ =
- 19.988³ =
- 20.996³ =
- 21.96³ =
- 22.1001³ =
- 23.1006³ =
- 24.104³ =
- 25.1020³ =
- 26.1010³ =
- 27.1017³ =
- 28.1018³ =
- 29.94³ =
- 30.96³ =
- 31.985³ =
- 32.991³ =
- 33.1006³ =
- 34.108³ =
- 35.1006³ =
- 36.107³ =
- 37.995³ =
- 38.984³ =
- 39.93³ =
- 40.981³ =
Answer key
- 955671625
- 973242271
- 830584
- 985074875
- 961504803
- 857375
- 997002999
- 1015075125
- 941192
- 1009027027
- 1225043
- 912673
- 961504803
- 970299
- 1092727
- 955671625
- 753571
- 804357
- 964430272
- 988047936
- 884736
- 1003003001
- 1018108216
- 1124864
- 1061208000
- 1030301000
- 1051871913
- 1054977832
- 830584
- 884736
- 955671625
- 973242271
- 1018108216
- 1259712
- 1018108216
- 1225043
- 985074875
- 952763904
- 804357
- 944076141
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