北師大四年級數(shù)學(xué)下冊前四個單元計算題練習(xí)題總匯

1、四年級數(shù)學(xué)簡便計算練習(xí)卷 四年級數(shù)學(xué)簡便計算練習(xí)卷一、口算。3.2+1.8= 0.9+0.6= 0.1－0.01= 1.2－0.121－0.385= 3.2－2.3= 0.76－0.38 15－7.35－2.652.1+0.2= 0.3+0.7= 3.6+1.6= 7.5-0.5= 3.7-0.9= 2.13-0.02= 3.5

2、1+0.2= 102+0.3= 1.12-1.02= 4.5-0.01=1.5－0.5＝ 1－0.9＝ 2.3＋0.6＝ 0.9＋0.8＝1.9－0.9= 3.5 2.4= 0.36＋0.64＝ 0.96－0.3＝0.8×25＝ 0.02×500＝ 1.05×8＝ 0×4.32＝

3、 2.8×10＝ 0.04×1.5＝ 0.57＋0.43＝ 3.6＋0.4＝0.62－0.29＝ 5.67－2.8＝ 6.4+0.7= 6.4-0.7= 6.4+0.7-0.6= 6.4-（0.7-0.3）= 1.34+0.7+0.3= 6-0.4-0.6=6.9－6= 0.9＋0.6= 1－

4、0.09= 0.9＋0.1= 2.7＋2.2= 0.2＋0.8= 0.8－0.8= 5.5＋10= 1.3－0= 0.7＋0.9= 0.8＋0.6= 8.24＋3.76= 14＋0.78= 14.6－0.34= 1.3＋8.56= 0.8－0.

5、55=4－0.04= 1－0.03= 30.5＋3.05= 0.8－0.45=0.78＋2.2= 5－0.08= 3.25＋0.75= 10－0.1=4.1－3.8= 1－0.71= 6.2－2.6= 0.431×100= 0.65÷10&#

6、215;100= 4.5＋5.4= 32.6－20=680 680 + 230 230 = 560÷ 560÷ 80 80 = 830 830 - 230 230 = 1500÷ 1500÷ 300 300 =15× 15× 80 80 = 0.7 0.7 + 0.3 0.3 = 8 + 0.42

7、0.42 = 1.2 1.2 + 8 =0.63 0.63 + 0.37= 0.37= 8.1 8.1 - 4 = 2 - 1.4 1.4 = 4.5 4.5 - 4.2 4.2 =0.64 0.64 - 0.24= 0.24= 3.6 3.6 + 10 10 = 3 + 3.7 3.7 = 9.2 9.2 - 4 =0.3 0.3萬+5 +5萬= 7億

8、-0.3 -0.3億= 8.8 8.8萬+12 +12萬= 5.6 5.6萬+0.21 +0.21萬=6.05 6.05×0.34 0.34 30.7 30.7×6.7 6.7 0.06 0.06×2.8 2.823 23．4×4.6 4.6 6.13 6.13×0.4 0.4 320 320×2.5 2.5 2.08

9、2.08×0.6 0.6 2.8 2.8×1.5 1.5 1.52 1.52×8.5 8.5 4.05 4.05×0.78 0.78 230 230×1.76= 1.76= 7.02 7.02×40 40 1.23 1.23×7 2.3 2.3×0.6 0.6 4.05 4.05×0.8 0.8 8.9 8.

10、9×2.31 2.31 0.5 0.5×40 40 6.08 6.08×50 50 2.07 2.07×40 40 2.4 2.4×3.8 3.8 1.23×1.6 1.23×1.6 1.05×2.3 1.05×2.3 5.24×0.32 5.24×0.32 40.2×5.4 40.2×

11、5.4 14.5×2.4 14.5×2.4 7.54×4.5 7.54×4.5 1.42×4 1.42×4 6.87×1.4 6.87×1.4 7.85×4.3 7.85×4.3 12.4×15 12.4×15 50.1×4.5 50.1×4.5 4.85

12、5;30 4.85×30 7.4×0.48 7.4×0.48 1.46×5.8 1.46×5.8 4.56×1.4 4.56×1.4 7.52×2.3 7.52×2.3 40.6×7.2 40.6×7.2 110×1.8 110×1.8 5.42×0.32 5.42×0.32

13、 456 456 ×0.42 ×0.42 7.08×1.2 7.08×1.2 700×2.5 700×2.5 4.5×1.4 4.5×1.4 7.89×5.2 7.89×5.2 4.86×1.2 4.86×1.2 870×0.16 870×0.16 751×

14、;1.3 751×1.3 100×0.14 100×0.14 140×5.2 140×5.2 1.47×0.99 1.47×0.99 120×0.48 120×0.48 1.56×7.8 1.56×7.8 7.04×1.4 7.04×1.41.42×5.24 1.42×5

15、.24 1.56×1.2 1.56×1.2 0.235×4.2 0.235×4.2 5.02×1.2 5.02×1.2 3.56×0.14 3.56×0.14 4.53×1.2 4.53×1.2 1.46×4.5 1.46×4.5 4.52×1.3 4.52×1.3 4.86&#

16、215;4.2 4.86×4.2 450×0.48 450×0.48 7.85×0.41 7.85×0.41 79.5×4.6 79.5×4.6 4.28×4.1 4.28×4.1 750×1.4 750×1.4 6.32×1.4 6.32×1.4 5.55×4.4 5.

17、55×4.4 1.25 1.25×4.8 4.8四、下面各題怎樣算簡便就怎樣算。 （1）小數(shù)加減法計算27.3+73.2+72.7 585+189+215 5.85－1.75－0.25768－274－126 5.85+1.89+2.15 24.8+14.6+15.442.5－22.17－7.83 3.8+1.37+6.2+12.63