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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

Wednesday January 23 2019
06:44:30 AM
Wednesday January 23 2019
06:44:30 AM
Flip Answers
1)   291 * 309 =          
2)   294 * 306 =          
3)   107 * 93 =          
4)   396 * 404 =          
5)   102 * 98 =          
6)   205 * 195 =          
7)   110 * 90 =          
8)   190 * 210 =          
9)   392 * 408 =          
10)   391 * 409 =          
11)   158 * 71 - 71 * 58 =          
12)   25 * 141 - 25 * 41 =          
13)   258 * 33 - 33 * 58 =          
14)   49 * 40 + 40 * 51 =          
15)   37 * 64 + 63 * 64 =          
16)   75 * 69 + 31 * 75 =          
17)   133 * 42 + 42 * 67 =          
18)   263 * 73 - 73 * 63 =          
19)   44 * 64 + 64 * 56 =          
20)   35 * 91 + 91 * 65 =          

Score: ______________   

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