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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 December 05 2025
02:04:57 AM
Friday December 05 2025
02:04:57 AM
Flip Answers
1)   195 * 205 =          
2)   191 * 209 =          
3)   295 * 305 =          
4)   409 * 391 =          
5)   92 * 108 =          
6)   299 * 301 =          
7)   397 * 403 =          
8)   408 * 392 =          
9)   106 * 94 =          
10)   403 * 397 =          
11)   41 * 25 + 59 * 25 =          
12)   45 * 150 + 45 * 50 =          
13)   80 * 256 - 80 * 56 =          
14)   64 * 61 + 61 * 36 =          
15)   60 * 82 + 82 * 140 =          
16)   92 * 72 + 128 * 92 =          
17)   64 * 238 - 64 * 38 =          
18)   27 * 150 + 27 * 50 =          
19)   236 * 55 - 36 * 55 =          
20)   31 * 163 - 63 * 31 =          

Score: ______________   

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