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 September 21 2018
09:59:42 AM
Friday September 21 2018
09:59:42 AM
Flip Answers
1)   106 * 94 =          
2)   291 * 309 =          
3)   299 * 301 =          
4)   97 * 103 =          
5)   210 * 190 =          
6)   402 * 398 =          
7)   103 * 97 =          
8)   308 * 292 =          
9)   397 * 403 =          
10)   405 * 395 =          
11)   39 * 76 + 61 * 76 =          
12)   39 * 25 + 61 * 25 =          
13)   71 * 57 + 57 * 29 =          
14)   50 * 38 + 50 * 162 =          
15)   42 * 93 + 93 * 158 =          
16)   150 * 41 - 50 * 41 =          
17)   251 * 31 - 51 * 31 =          
18)   84 * 40 + 84 * 60 =          
19)   54 * 256 - 56 * 54 =          
20)   79 * 148 + 79 * 52 =          

Score: ______________   

Provided by TigerNT.com