解方程
(1)8x÷0.7=8;
(2)
m+
=
m;
(3)0.4:x=(1+
):5.
把下面的假分数化成整数或带分数,把带分数化成假分数。
⑴ = |
⑵ = |
⑶ = |
⑷3 = |
⑸ = |
⑹ = |
⑺13 = |
⑻ = |
用竖式计算,并验算。
| ⑴10.15+8.36= |
⑵8.24﹣3.56= |
⑶50﹣5.46= |
用简便方法计算。
| ⑴15﹣0.3= |
⑵6﹣0.5= |
⑶3.9+12.1= |
⑷2.13+14= |
⑸0.91+1.25= |
| ⑹10﹣0.76= |
⑺3.99﹣0.9= |
⑻0.567+4.44= |
⑼0.37+0.6= |
⑽7.46+2.54= |
| ⑾1﹣0.08= |
⑿45.9+1= |
⒀6.87﹣3.25= |
⒁0.25+0.75= |
⒂0.78+0.22= |
| ⒃6.1﹣5.7= |
用简便方法计算。
(1)5.85+1.89+2.15
(2)24.8+14.6+15.4
(3)42.5﹣22.17﹣7.83
(4)3.8+1.37+6.2+12.63
用竖式计算,并进行验算。
| (1)5.46+4.72= |
(2)105.5﹣5.94= |
(3)5.8+55.33= |
| (4)12.05+0.57= |
(5)4.952+6.25= |
(6)8.05﹣0.57= |