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Goal: to practice how to make use of distributive property on special numbers, like (A + B) * (A - B) = A*A - B*B, A*C +B*C = (A + B ) *C, A*C - B*C = (A-B) * C

Tuesday February 24 2026
07:23:15 PM
Tuesday February 24 2026
07:23:15 PM
Flip Answers
1)   209 * 191 =          
2)   401 * 399 =          
3)   291 * 309 =          
4)   202 * 198 =          
5)   96 * 104 =          
6)   309 * 291 =          
7)   403 * 397 =          
8)   397 * 403 =          
9)   401 * 399 =          
10)   393 * 407 =          
11)   139 * 93 - 93 * 39 =          
12)   51 * 67 + 33 * 51 =          
13)   44 * 64 + 44 * 136 =          
14)   26 * 49 + 26 * 151 =          
15)   76 * 41 + 76 * 159 =          
16)   44 * 58 + 56 * 58 =          
17)   25 * 272 - 25 * 72 =          
18)   91 * 66 + 134 * 91 =          
19)   56 * 69 + 56 * 131 =          
20)   58 * 273 - 73 * 58 =          

Score: ______________   

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