总述:本次共解5题。其中
☆算术计算3题
☆整数计算2题
〖1/5整数列竖式计算〗
题型:整数乘法
原题:299999999999×399999999999 解:
299999999999×399999999999 =
119999999999300000000001 列竖式计算:
| | | | | | | | | | | | | | | | | 2 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
✖ | | | | | | | | | | | | | | | | | 3 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
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| | | | | | | | | | | | | | | | 2 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 1 |
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| | | | | 1 | 1 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
〖2/5整数列竖式计算〗
题型:整数乘法
原题:777777777777×555555555555 解:
777777777777×555555555555 =
432098765431234567901235 列竖式计算:
| | | | | | | | | | | | | | | | | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
✖ | | | | | | | | | | | | | | | | | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
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| | | | | | | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 |
| | | | | | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | |
| | | | | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | |
| | | | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | |
| | | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | |
| | | | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | | |
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| | | | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | | | | |
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| | | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | | | | | | |
| | | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | | | | | | | |
| | | | | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 5 | | | | | | | | | | | |
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| | | | | 4 | 3 | 2 | 0 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 0 | 1 | 2 | 3 | 5 |
〖3/5算式〗
作业:求算式 1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3 的值.
题型:数学计算
解:
1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3
=2.6+1.9+2.3+2.7+3.1+3.5+3.9+4.3
=4.5+2.3+2.7+3.1+3.5+3.9+4.3
=6.8+2.7+3.1+3.5+3.9+4.3
=9.5+3.1+3.5+3.9+4.3
=12.6+3.5+3.9+4.3
=16.1+3.9+4.3
=20+4.3
=24.3 答案:1.1+1.5+1.9+2.3+2.7+3.1+3.5+3.9+4.3=24.3〖4/5算式〗
作业:求算式 (129+1419+14319+143319+1433319+14333319+143333319)÷43 的值.
题型:数学计算
解:
(129+1419+14319+143319+1433319+14333319+143333319)÷43
=159259143÷43
=3703701 答案:(129+1419+14319+143319+1433319+14333319+143333319)÷43=3703701〖5/5算式〗
作业:求算式 98765+9876.5+987.65+98.765+9.8765+0.98765 的值.
题型:数学计算
解:
98765+9876.5+987.65+98.765+9.8765+0.98765
=108641.5+987.65+98.765+9.8765+0.98765
=109629.15+98.765+9.8765+0.98765
=109727.915+9.8765+0.98765
=109737.7915+0.98765
=109738.77915 答案:98765+9876.5+987.65+98.765+9.8765+0.98765=109738.77915你的问题在这里没有得到解决?请到 热门难题 里面看看吧!