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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 November 18 2025
10:49:52 AM
Tuesday November 18 2025
10:49:52 AM
Flip Answers
1)   310 * 290 =          
2)   90 * 110 =          
3)   292 * 308 =          
4)   395 * 405 =          
5)   390 * 410 =          
6)   198 * 202 =          
7)   202 * 198 =          
8)   394 * 406 =          
9)   205 * 195 =          
10)   295 * 305 =          
11)   26 * 43 + 26 * 157 =          
12)   45 * 175 - 45 * 75 =          
13)   79 * 139 - 79 * 39 =          
14)   51 * 42 + 58 * 51 =          
15)   240 * 32 - 40 * 32 =          
16)   256 * 67 - 56 * 67 =          
17)   89 * 46 + 154 * 89 =          
18)   41 * 41 + 59 * 41 =          
19)   50 * 61 + 39 * 50 =          
20)   65 * 37 + 37 * 35 =          

Score: ______________   

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