总述:本次共解3题。其中
☆算术计算3题
〖1/3算式〗
作业:求算式 1+1.1+1.2+1.3+1.4+1.5+1.6+1.7+1.8+1.9+2 的值.
题型:数学计算
解:
1+1.1+1.2+1.3+1.4+1.5+1.6+1.7+1.8+1.9+2
=2.1+1.2+1.3+1.4+1.5+1.6+1.7+1.8+1.9+2
=3.3+1.3+1.4+1.5+1.6+1.7+1.8+1.9+2
=4.6+1.4+1.5+1.6+1.7+1.8+1.9+2
=6+1.5+1.6+1.7+1.8+1.9+2
=7.5+1.6+1.7+1.8+1.9+2
=9.1+1.7+1.8+1.9+2
=10.8+1.8+1.9+2
=12.6+1.9+2
=14.5+2
=16.5 答案:1+1.1+1.2+1.3+1.4+1.5+1.6+1.7+1.8+1.9+2=16.5〖2/3算式〗
作业:求算式 (9+8.1+7.11+6.111+5.1111+4.11111+3.111111)÷21.06172835 的值.
题型:数学计算
解:
(9+8.1+7.11+6.111+5.1111+4.11111+3.111111)÷21.06172835
=42.654321÷21.06172835
=2.025205 答案:(9+8.1+7.11+6.111+5.1111+4.11111+3.111111)÷21.06172835=2.025205〖3/3算式〗
作业:求算式 98765.4321×1234.56789-98765.4322×1234.56788 的值.
题型:数学计算
解:
98765.4321×1234.56789-98765.4322×1234.56788
=121932631.112635-98765.4322×1234.56788
=121932631.112635-121932630.248438
=0.864197 答案:98765.4321×1234.56789-98765.4322×1234.56788=0.864197你的问题在这里没有得到解决?请到 热门难题 里面看看吧!