Home E-C Dict C-E Dict Online Tools Recipe

Math Main Page => Exercises - Math III    
 

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

Friday January 02 2026
06:55:49 AM
Friday January 02 2026
06:55:49 AM
Flip Answers
1)   109 * 91 =          
2)   409 * 391 =          
3)   401 * 399 =          
4)   398 * 402 =          
5)   305 * 295 =          
6)   204 * 196 =          
7)   299 * 301 =          
8)   93 * 107 =          
9)   210 * 190 =          
10)   310 * 290 =          
11)   136 * 54 + 64 * 54 =          
12)   45 * 55 + 145 * 45 =          
13)   138 * 21 + 21 * 62 =          
14)   264 * 47 - 64 * 47 =          
15)   86 * 235 - 35 * 86 =          
16)   97 * 57 + 97 * 143 =          
17)   235 * 23 - 35 * 23 =          
18)   79 * 51 + 79 * 49 =          
19)   267 * 71 - 71 * 67 =          
20)   47 * 235 - 47 * 35 =          

Score: ______________   

Provided by TigerNT.com