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= |
很快算出得数。
⑴5+0.4= |
⑵1.4+2.7= |
⑶8.2+3.7= |
⑷5+2.4= |
⑸1.8﹣2.7= |
⑹7.3+0.9= |
⑺2+5.3= |
⑻2.0+1.8= |
⑼5.7+2.8= |
⑽6+2.2= |
⑾1.5+8.5= |
⑿7.4+1.6= |
⒀5﹣6.5= |
⒁3.2﹣2.3= |
⒂4.2﹣2.2= |
⒃2﹣2.3= |
能简算的要简算.
⑴3.4×12.5×0.15×8×2 |
⑵1.25×4.6×8 |
⑶3.14×9+3.14 |
⑷4.5×2.6+4.5×7.4 |
⑸125×0.74×0.08 |
⑹2.86×0.5×4.6. |
直接写得数.
⑴12.5×8= |
⑵6.4+4.6= |
⑶4.4×20= |
⑷4.18×1000= |
⑸6﹣0.7= |
⑹0.04×0.3= |
⑺3﹣2.01= |
⑻6.2+0.04= |
用竖式计算,减法题要验算,乘法题得数保留两位小数.
4.6﹣1.96
0.65×0.48
32.32÷16.
直接写出得数
5.5×2= 9.6÷4.8= 3﹣1.5×2= 2×3.1=
2.4×0.5= 0.125×8﹣0.1= 0.48÷6= 6.4﹣4=
0.6÷3+3= 0.91÷13= 3.25+0.75= 9.9﹣0.9÷0.1=
怎样算简便就怎样算.
6.24÷4+3.76×0.25 |
16.2×9.9+1.62 |
7.75×[20÷(3.24﹣3.04)] |
788÷12.5÷0.8 |
276.4×11﹣276.4 |
25×(4.7+4.7+4.7+4.7) |
用竖式计算.
9.73+0.27= |
6﹣1.55= |
3.05×0.66= |
22.5÷0.25= |
计算下面各题,能简便计算的要简便计算.
5.27﹣1.98﹣0.02 |
3.2×5.7+6.8×5.7 |
2.5×6.8×0.4 |
5.6﹣36÷30 |
0.72+9.6÷3.2 |
7.75×[20÷(3.24﹣3.04)]. |
计算题.(能简便的要简便)
①432×109﹣9×432 |
②99×172 |
③9×72×125 |
④463﹣187+137﹣113 |
⑤9.73+0.483+4.83+12.4 |
⑥8.32+5.763﹣2.808﹣1.78 |
⑦384×[150÷(50﹣25)] |
⑧﹣(用小数计算) |
用竖式计算.
2.08×7.5
32.5÷2.5
78.6÷11(商用循环小数表示)
试题篮
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