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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

Tuesday May 19 2026
01:39:33 AM
Tuesday May 19 2026
01:39:33 AM
Flip Answers
1)   394 * 406 =          
2)   390 * 410 =          
3)   108 * 92 =          
4)   391 * 409 =          
5)   403 * 397 =          
6)   105 * 95 =          
7)   303 * 297 =          
8)   96 * 104 =          
9)   410 * 390 =          
10)   110 * 90 =          
11)   53 * 149 - 49 * 53 =          
12)   57 * 257 - 57 * 57 =          
13)   74 * 130 + 74 * 70 =          
14)   33 * 73 + 73 * 67 =          
15)   93 * 161 + 39 * 93 =          
16)   57 * 249 - 57 * 49 =          
17)   139 * 75 - 75 * 39 =          
18)   137 * 85 - 85 * 37 =          
19)   50 * 67 + 67 * 150 =          
20)   129 * 38 + 71 * 38 =          

Score: ______________   

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