简便运算
(1)231×6.2+23.1×208﹣131×27;
(2)7﹣1.125+(2.25﹣6);
(3)1﹣2+3﹣4+5﹣6+7﹣8+9+97﹣98+99;
(4)1++++…+.
直接写出得数.
57÷1.9= |
2.5×0.4= |
6.3÷9= |
7.6+0.6= |
10.5﹣5= |
200×0.5= |
4÷80= |
0.45÷0.3= |
4﹣0.9= |
3.7+6.4= |
0÷3.7= |
12.5×80= |
180×6= |
42×5= |
8.97+1.03= |
120﹣25×4= |
(苏州)计算下面各题,能简算的要简算.
①630÷18×24 ②0.7+3.9+4.3+6.1 ③16×+4×
④(7.5﹣7.5×0.6)÷4 ⑤(+÷3)× ⑥.
列竖式计算
3.56+7.5= |
3﹣2.08= |
2.25×48= |
44÷50= |
5.06×1.3= |
0.72÷1.5= |
35.5×180= |
50.4÷0.48= |
40.5÷0.18= |
列竖式计算。
⑴4.5﹣2.6= |
⑵3.7+5.8= |
⑶9.1+5.6= |
⑷45.3﹣32.7= |
⑸856÷8= |
⑹100﹣29.6= |
⑺83×46= |
⑻13.1﹣2.3= |
⑼34×76= |
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)]. |
我用竖式算一算。
3.4+1.5= |
6.8﹣2.1= |
4.2+5.3= |
9.8﹣6.7= |
7.6+2.4= |
15﹣2.3= |
用竖式计算.
9.73+0.27= |
6﹣1.55= |
3.05×0.66= |
22.5÷0.25= |
在横线上填上“>”“<”或“=”
23.2×0.87 23.2; 23.2×0.87 0.87; 3.6÷0.82 3.6×0.82.
试题篮
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