小数乘法问题大全及答案
更新时间:2021-06-23
类型:小学五年级数学题
题数:439
答:
(1)3.2 (2)12 (3)2.8 (4)0.57 (5)0.11 (6) (7)1.2 (8)0.1 (9)10 (10)10 (11)4 (12)96
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答:
①2.1×3=6.3②2×0.5=1③0.2×0.6=0.12④0.2×0.2=0.04⑤1.1÷10=0.11⑥0.35÷7=0.05⑦8.1÷0.9=9⑧0.49÷0.07=7⑨5÷0.5=10⑩0÷0.18=0
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答:
3.14×2.4=7.536,所以3.14×2.4的积保留一位小数是 7.5,保留两位小数是7.54.故答案为:7.5,7.54.
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答:
①4.3×1.9=8.17验算:②1.26÷0.84=1.5验算:③0.26×0.25=0.065④7.2÷0.04=180
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答:
(1)0.3×0.2=0.064.2÷0.7=61.2×5=60.25×4=1(2)12-1.2=10.82.4×10=243.6÷12=0.30.78÷0.15=5.2(3)0.4×0.02=0.0083.5+7.6=11.11.23÷3=0.412.4×2.5=6(4)16÷1.6=100.9÷0.01=907÷0.25=2899&t
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答:
1.2×0.1=0.127.7÷11=0.767×0.01=0.670.8×0.8÷0.8=0.83.2÷0.16=208.8÷2.2=47.2×9+7.2=724.7-1.5-0.5=2.70.8×5×0.2=0.8
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答:
3.75×0.9=3.3753.75×0.9<3.720.14÷0.02=70.14÷0.02>1.4故答案为:<,>.
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答:
0.1×0.2=0.02,3.5+7.6=11.1,8.8÷2.2=4,1-0.75=0.25,0.5×0.8=0.4,18÷1.8=10,0÷2.1=0,4×3.2=12.8,1.25×8=10,4.2÷0.1=42.故答案为:0.02,11.1,4,0.25,0.4,10,0,12.8,10,42.
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答:
3.06×0.54=1.65248.5÷0.51≈16.67
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答:
李爷爷昨天收款的钱数:1.5×75=112.5(元).答:李爷爷昨天收款112.5元.
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答:
0.6×5=3,1.3×2=2.6,9.4-0.4=9,5.1÷0.3=17,2÷0.02=100,6.5+3.07=9.57,4.3×2=8.6,2.1÷3=0.7,5.07×10=50.7.
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答:
5×3=15;6.2÷2=3.1;3.8×4=15.2;9.5÷1.9=5;0.6×1.5=0.9;4.5÷0.9=5;0.01×100=1;0.01÷0.1=0.1;4÷3=113;3.8÷1.9×0=0.
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