405x025x04脫式計算

2021-05-29 02:11:52 字數 2520 閱讀 9422

1樓:匿名使用者

1、直接寫出得數。0.45×2.

5=62616964757a686964616fe4b893e5b19e313333613036381.1250.8×1.

25=10.3×3.6=1.

080.3×0.3=0.

0910×0.07=0.70.

92×0.4=0.3680.

2×0.26=0.0520.

14×4=0.560.02×0.

1=0.0021.2×0.

3=0.362.5×0.

4=12.4×5=120.22×4=0.

883.25×0=00.9-0.

52=0.383.99×1=3.

990×3.52=012.5×8=1008÷10=0.

810-1.8-7.2=10.

43+3.57=42.5×4×12=1440.

9×0.8=0.727.

5x-3x=4.5xa+3a+7a==11a1.05×100=1051÷0.

5=20.96÷3=0.320.

56×100=563.78×100=3784÷0.8=53.

215×100=321.50.8×10=84.

08×100=4081.1×0.2=0.

220.6×0.8=0.

483×0.9=2.72.

5×0.4=10.16×5=0.

81.78+2.2=3.

981.2×0.5-0.

4=0.20.7÷0.

01=702.5×0.4=112-3.

9=8.11.25×8÷1.

25=86.6÷0.66=105.

37×0+4.63=4.633.

9+2.03=5.937.

2+2.8=101.4×5=72、用豎式計算0.

18×15=0.025×14=3.06×36=0.

04×0.12=3.84×2.

6≈5.76×3=(保留一位小數)16.9÷0.

131.55÷3.93.

7×0.01613.76×0.

8=5.2×0.68.

4×1.36.4×0.

54.48×0.45.

25×535.4×4.20.

042×0.540.76×0.

320.12×0.5×0.

16=4.8×0.25=0.

125×1.4≈(保留兩位小數)2.5÷0.

7=(保留三位小數)10.1÷3.3=(商用迴圈小數)10.

75÷12.5=(用乘法驗算)3.25×9.

04=(用除法驗算)3、脫式計算(能簡算的要簡算)2.5×7.1×416.

12×99+16.125.2×0.

9+0.97.28×99+7.

284.3×50×0.264-2.

64×0.526×15.7+15.

7×24(2.275+0.625)×0.

283.94+34.3×0.

21.2×(9.6÷2.

4)÷4.88.9×1.

1×4.72.7×5.

4×3.93.6×9.

85-5.468.05×3.

4+7.66.58×4.

5×0.92.8×0.

5+1.5832+4.9-0.

94.8-4.8×0.

5(1.25-0.125)×84.

8×100.156.5×99+56.

57.09×10.8-0.

8×7.094.85+0.

35÷1.48.7×17.

4-8.7×7.412.

5×0.4×2.5×80.

87×3.16+4.649.

5×1010.68÷(5.2-3.

5)×1.2540.5÷0.

81×0.184.8×(15÷2.

4)2.13.×0.×82576.

81+6.81×990.25×185×404.

4×0.8-3.4×0.

8(9.37+9.37+9.37+9.37)×2.54.2.×1.

+1.×1.752.

37×6.3+2.37×3.

72.5×1.25×0.

323.8×10.12.

5×(3.8×0.04)7.

69×1013.8×10.10.

25×39+0.250.125×7246×0.

33+54×0.33(8×5.27)×1.

256.81+6.81×990.

25×185×406.8×0.75÷0.

53.75÷0.125–2.

751.53+23.4÷7.

29.5×9913.5×0.

9812.5×8.8補充回答:

脫式計算(能簡算的要簡算)7.28×99+7.284.

3×50×0.264-2.64×0.

526×15.7+15.7×24(2.

275+0.625)×0.283.

94+34.3×0.21.

2×(9.6÷2.4)÷4.8

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