3 运动定律与简便运算
19﹣2.3×3.6
0.125×2.5×8×0.4
(18.02+12.58)×1.3
42.3÷0.09×1.8
0.35÷0.25×4
9.06×10.1﹣0.1×9.06.
计算我最棒.
(1)3.91×2.8+6.09×2.8 (2)3.5÷0.5÷0.7
(3)1﹣(6.75﹣3.5)÷13 (4)12.5×4.64×0.8
(5)(34.17÷1.7+1.6)×0.3 (6)0.175÷25÷0.4.
能简算的要简算
0.76×230﹣30
9.2×l.85+3.65
(7.39+7.39+7.39+7.39)×2.5
0.78×101
0.25×28
4.2×l.36+1.36×5.8.
我会巧算.
1.2×0.4+1.3×0.4 (1.25+0.36)×0.2 7.2×0.3+28×0.03 0.25×0.56×0.4
8×(2.5+0.125) 0.25×0.56×0.4 32.8+5.6+7.2 75.2﹣66.9﹣5.2.
1.25×32 0.56+3.48+0.44+6.52 2.8×(2.25+28.5÷1.5)
5.8×7.6+7.6×4.2 145.3﹣58.6﹣41.4 [(5.1﹣3.6)÷0.8﹣1]×0.09.
计算.(能简便的用简便法计算)
4.25÷0.125÷8
2.5×(6.2﹣2.6)×0.4
76.2÷0.16﹣0.16
0.45与2.4的积除1.62,商是多少?
下面各题怎样算简便就怎样算
88.51﹣9.06﹣0.94 132+16.4+268+23.6 3.028﹣20.44+66.972
55.27+8.236﹣5.27 64.6﹣3.46+5.4﹣6.54 64.3﹣18.75+15.7﹣11.25.
脱式计算:(能简算的要简算)
12.8+1.9+15.94;
7.69+(4.76﹣1.96);
4.68+2.72+7.32;
25.06﹣2.65﹣8.35.
递等式计算.(能简算的要简算)
19.67﹣(1.67+2)﹣1
(4﹣3.6×)÷
×+×
3.5×+5.5×80%+0.8
6.4×1.25×2.5
2008÷2009×2010.
计算下面各题(能简便的用简便方法计算).
10.15﹣10.75×0.4﹣5.7
5.8×(3.87﹣0.13)+4.2×3.74
32.52﹣(6+9.728)÷3.2×2.5
[(7.1﹣5.6)×0.9﹣1.15]÷2.5
5.4÷[2.6×(3.7﹣2.9)+0.62]
[20﹣(90.75÷6.6+2.25)]×11.6.
递等式计算(能简算的要简算).
(1)91.2﹣43.68÷7.8
(2)1.82×5.7÷0.3
(3)8.06×10.1﹣0.1×8.06
(4)6÷0.125.
能简算的要简便.
0.25×9.87×4 36.7×2.1+10.8 8.45﹣0.45×0.1
0.73×102 7.8×5.6+2.3×4.4 76.3×27﹣76.3×17.
脱式计算.(能简便的要用简便方法算)
4.2+7.64+5.8+2.36 14.28﹣2.63﹣7.37 6.8+5.26+3.74+3.2
8.2×101﹣8.2 (520+480)÷50×4 400﹣(1300÷65+35)
1.5×1.3×4 2.7+3.1+2.9+3.2 25﹣4.9﹣6.1
3.5×4.8+2.2×2.4 131+132+130+129 (13+5.2)÷1.3.
用递等式计算,能简便计算的要简算.
(1)2.01×1.53÷0.18
(2)5.86×99.4+5.86×0.6
(3)2.2×2.2+2.2×7.8
(4)0.25×(4.83﹣0.85)
(5)(12.5+1.25+0.125)×8
(6)(148.4﹣90.85)÷2.5.
计算下面各题.
0.24+3.6×5 1.82+3.89+0.18
20﹣1.32﹣2.68 (4+0.4)×0.25
0.25×7×4 0.48×0.7+0.52×0.7
28.6×101﹣28.6 0.25×1.25×32.
看看谁的办法妙!
4.8+2.71+5.2+7.29 8.47﹣3.56﹣1.44 27.6﹣(7.6+3.25)
79.86+99.9 159﹣(62.39+58) 72.8+(72.8﹣8.25)