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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

Saturday November 17 2018
02:28:34 PM
Saturday November 17 2018
02:28:34 PM
Flip Answers
1)   294 * 306 =          
2)   199 * 201 =          
3)   407 * 393 =          
4)   93 * 107 =          
5)   199 * 201 =          
6)   399 * 401 =          
7)   195 * 205 =          
8)   95 * 105 =          
9)   94 * 106 =          
10)   408 * 392 =          
11)   45 * 44 + 44 * 55 =          
12)   64 * 135 - 64 * 35 =          
13)   275 * 80 - 75 * 80 =          
14)   245 * 28 - 45 * 28 =          
15)   75 * 50 + 25 * 50 =          
16)   32 * 64 + 32 * 136 =          
17)   30 * 158 - 30 * 58 =          
18)   75 * 70 + 30 * 75 =          
19)   64 * 75 + 36 * 75 =          
20)   161 * 23 - 23 * 61 =          

Score: ______________   

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