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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

Thursday February 26 2026
04:25:54 PM
Thursday February 26 2026
04:25:54 PM
Flip Answers
1)   397 * 403 =          
2)   210 * 190 =          
3)   192 * 208 =          
4)   408 * 392 =          
5)   109 * 91 =          
6)   199 * 201 =          
7)   394 * 406 =          
8)   395 * 405 =          
9)   190 * 210 =          
10)   196 * 204 =          
11)   30 * 148 + 30 * 52 =          
12)   65 * 258 - 65 * 58 =          
13)   48 * 266 - 48 * 66 =          
14)   53 * 37 + 37 * 47 =          
15)   53 * 249 - 49 * 53 =          
16)   42 * 46 + 58 * 46 =          
17)   244 * 22 - 22 * 44 =          
18)   237 * 40 - 40 * 37 =          
19)   78 * 31 + 69 * 78 =          
20)   173 * 47 - 47 * 73 =          

Score: ______________   

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