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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 February 10 2026
05:11:02 PM
Tuesday February 10 2026
05:11:02 PM
Flip Answers
1)   399 * 401 =          
2)   308 * 292 =          
3)   397 * 403 =          
4)   410 * 390 =          
5)   405 * 395 =          
6)   101 * 99 =          
7)   108 * 92 =          
8)   406 * 394 =          
9)   302 * 298 =          
10)   408 * 392 =          
11)   58 * 93 + 93 * 42 =          
12)   88 * 37 + 88 * 63 =          
13)   50 * 175 - 50 * 75 =          
14)   85 * 162 - 62 * 85 =          
15)   25 * 240 - 25 * 40 =          
16)   140 * 56 - 40 * 56 =          
17)   36 * 93 + 164 * 93 =          
18)   257 * 52 - 57 * 52 =          
19)   42 * 65 + 42 * 135 =          
20)   24 * 250 - 50 * 24 =          

Score: ______________   

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