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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

Friday May 08 2026
04:28:54 AM
Friday May 08 2026
04:28:54 AM
Flip Answers
1)   391 * 409 =          
2)   93 * 107 =          
3)   106 * 94 =          
4)   402 * 398 =          
5)   404 * 396 =          
6)   193 * 207 =          
7)   110 * 90 =          
8)   106 * 94 =          
9)   201 * 199 =          
10)   209 * 191 =          
11)   149 * 86 - 86 * 49 =          
12)   58 * 140 + 60 * 58 =          
13)   238 * 73 - 38 * 73 =          
14)   145 * 45 - 45 * 45 =          
15)   87 * 33 + 87 * 67 =          
16)   42 * 27 + 58 * 27 =          
17)   55 * 23 + 145 * 23 =          
18)   241 * 80 - 80 * 41 =          
19)   84 * 239 - 84 * 39 =          
20)   42 * 56 + 42 * 44 =          

Score: ______________   

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