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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

Monday April 20 2026
01:11:41 AM
Monday April 20 2026
01:11:41 AM
Flip Answers
1)   191 * 209 =          
2)   201 * 199 =          
3)   305 * 295 =          
4)   403 * 397 =          
5)   410 * 390 =          
6)   198 * 202 =          
7)   94 * 106 =          
8)   407 * 393 =          
9)   99 * 101 =          
10)   307 * 293 =          
11)   62 * 27 + 27 * 38 =          
12)   87 * 257 - 87 * 57 =          
13)   60 * 247 - 47 * 60 =          
14)   52 * 51 + 48 * 51 =          
15)   160 * 89 + 89 * 40 =          
16)   65 * 155 - 65 * 55 =          
17)   37 * 85 + 85 * 63 =          
18)   28 * 137 - 28 * 37 =          
19)   90 * 172 - 90 * 72 =          
20)   25 * 21 + 21 * 75 =          

Score: ______________   

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