递等式计算,写出必要的计算过程,能简便计算的用简便方法计算:
(1)0.3×(1×0.5÷1×0.5)
(2)1.25×6.4×2.5×5
(3)4.8×2.5+17.22÷2.1
(4)25.2×(0.32÷0.4)+8.6
(5)3.25×4.8+7.75×4.8﹣4.8
(6)6.4÷[(22.6﹣8.4×1.5)÷2.5].
计算,能简算的要简算
10÷0.2÷2.5 64×4.5+3.6×45 1.25×3.2×0.8
14.5×102 14.64+3.7×2.8 8.4÷0.21÷0.5.
①12.5×3.7×0.8
②4.6×2.3+7.7×4.6
③3.6+(5.7+3.8)÷0.5
④3.6÷0.4﹣1.5×3
⑤0.1÷0.2÷0.4
⑥80.3﹣5.6×1.7.
怎样简便就怎样算.
0.125×4.78×80 2.8×3.6+1.4×2.8 (0.4+40)×2.5
78.7﹣17.7×3.6 18÷[0.3×(8﹣6.5)] 12.7+12.5+0.5.
用你喜欢的方法计算.
0.6+0.94﹣0.208 4.85×1.25×8 (64﹣22.4÷1.4)×1.2
18.3﹣6.25﹣3.75 2.8×3.6+1.4×2.8 6.6÷〔14.5﹣(1.7+1.8)〕
直接写得数:
0.002×100= 8÷100= 0÷100+72= 25×19×4=
0.83﹣0.23= 4.8+0.12= 5﹣2.7= 3.6+7.65+6.4=
用简便方法计算下面各题.
13.2﹣3.7﹣6.3 10.26﹣(3.78+4.26) (+)×24
101×7.8 ×24+176×20% 32×12.5×O.25
8.6×+8.6÷3 700÷12.5÷8.
递等式计算(能简算的要简算).
(1)2.5×0.8×0.4×12.5
(2)6.3×9.9
(3)3.93×9.8+0.2×3.93
(4)300﹣(2.03+6.1)×30
(5)(1﹣0.2)×(3﹣2.32)÷0.01
(6)8÷[(40.75﹣9.5)×0.4].
用递等式计算,能简便计算的要简便计算.
0.125×0.5×0.8 60.4×0.8﹣12.8 2.8+0.6×0.35
0.2÷2.5 104×0.45 0.9×3.6+1.1×0.36.
计算下面各题,能简便的要用简便方法计算.
1.3+0.94+0.06+7.7 6.27÷0.3+3 12.5×0.48×0.8 5.2×[(1.3+2.1)÷0.2].
试题篮
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