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Math Main Page => Exercises - Math III
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| Monday October 13 2008 03:18:20 PM | Monday October 13 2008 03:18:20 PM | ||
| 1) | 306 * 294 = | 1) 300 * 300 - 6 * 6 = 89964 | |
| 2) | 96 * 104 = | 2) 100 * 100 - 4 * 4 = 9984 | |
| 3) | 308 * 292 = | 3) 300 * 300 - 8 * 8 = 89936 | |
| 4) | 303 * 297 = | 4) 300 * 300 - 3 * 3 = 89991 | |
| 5) | 98 * 102 = | 5) 100 * 100 - 2 * 2 = 9996 | |
| 6) | 406 * 394 = | 6) 400 * 400 - 6 * 6 = 159964 | |
| 7) | 207 * 193 = | 7) 200 * 200 - 7 * 7 = 39951 | |
| 8) | 93 * 107 = | 8) 100 * 100 - 7 * 7 = 9951 | |
| 9) | 402 * 398 = | 9) 400 * 400 - 2 * 2 = 159996 | |
| 10) | 409 * 391 = | 10) 400 * 400 - 9 * 9 = 159919 | |
| 11) | 150 * 64 + 64 * 50 = | ( 150 + 50) * 64 = 12800 | |
| 12) | 74 * 149 - 49 * 74 = | ( 149 - 49) * 74 = 7400 | |
| 13) | 262 * 40 - 62 * 40 = | ( 262 - 62) * 40 = 8000 | |
| 14) | 41 * 161 + 41 * 39 = | ( 161 + 39) * 41 = 8200 | |
| 15) | 62 * 256 - 56 * 62 = | ( 256 - 56) * 62 = 12400 | |
| 16) | 33 * 56 + 56 * 67 = | ( 33 + 67) * 56 = 5600 | |
| 17) | 54 * 48 + 54 * 152 = | ( 152 + 48) * 54 = 10800 | |
| 18) | 175 * 29 - 75 * 29 = | ( 175 - 75) * 29 = 2900 | |
| 19) | 163 * 76 - 76 * 63 = | ( 163 - 63) * 76 = 7600 | |
| 20) | 64 * 56 + 56 * 36 = | ( 36 + 64) * 56 = 5600 | |
Score: ______________ | |||
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