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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 June 23 2017
09:47:54 PM
Friday June 23 2017
09:47:54 PM
Flip Answers
1)   303 * 297 =          
2)   298 * 302 =          
3)   202 * 198 =          
4)   395 * 405 =          
5)   91 * 109 =          
6)   97 * 103 =          
7)   203 * 197 =          
8)   293 * 307 =          
9)   110 * 90 =          
10)   203 * 197 =          
11)   35 * 126 + 74 * 35 =          
12)   76 * 48 + 76 * 152 =          
13)   269 * 88 - 69 * 88 =          
14)   26 * 269 - 26 * 69 =          
15)   72 * 79 + 79 * 28 =          
16)   54 * 40 + 54 * 60 =          
17)   255 * 50 - 50 * 55 =          
18)   157 * 49 + 43 * 49 =          
19)   26 * 64 + 26 * 136 =          
20)   21 * 239 - 39 * 21 =          

Score: ______________   

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