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) |
简算
4.9+0.1﹣4.9+0.1
10.78﹣(2.78+3.693)
99.99×22.22+33.33×33.34
(2.5×2.5+2.5×2.5+2.5×2.5+2.5×2.5)×8.
根据46×15=690,1575÷15=105,直接写出下面各题的结果.
4.6×15=
0.46×0.15=
15.75÷0.15=
15.75÷1.5= .
脱式计算
54÷(3.94+6.86)
0.175÷0.25÷4
0.25×32×1.25.
简便计算
0.49×12.5×0.8; 5.61﹣5.61÷1.5; 0.45×78.2+20.8×0.45+0.45.
口算:
x+0.4x= |
4.8÷0.6= |
1÷0.2= |
5.2×25×0.2= |
0.8×0.8= |
6.23﹣0.2= |
0.7x×5= |
10﹣5.2﹣3.1= |
计算下面各题(能简算的要简算).
2.16÷(2.84+7.96)×0.8
37×9.99
45.7×3.9+5.43×39
[20.08+(32﹣29.9÷23)]÷2.
直接写出得数.
0.5×1.4= |
2.14﹣0.9= |
0.27÷0.06= |
0.99+1.8= |
2.15﹣0.09= |
64.32÷16= |
500×0.02= |
8.02﹣7.4= |
用竖式计算,带☆的要验算,带★的得数保留两位小数.
①2.05×2.4
②☆0.672÷4.2
③★2.7÷0.46.
脱式计算(怎样简便就怎样算)
(+)×3.6 3.7×+1.3÷ 4﹣﹣
2﹣÷﹣ ×+× 16÷(1+)
计算,能简便的要简便.
14.5×64﹣64×4.5
2.5×32×12.5
×9﹣8÷
×(÷+)
试题篮
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