1.直接写出得数。(9分)
2.4×50=
10÷0.125=
0.36+0.7=
63÷0.7=
8.35−2.35+1.65=
2.4÷0.01=
6×0.5÷0.6×0.5=
120×0.01=
3.75×100÷10=
2.4×50=
10÷0.125=
0.36+0.7=
63÷0.7=
8.35−2.35+1.65=
2.4÷0.01=
6×0.5÷0.6×0.5=
120×0.01=
3.75×100÷10=
答案
1. 120 80 1.06 90 7.65 240 2.5 1.2 37.5
2.用竖式计算。(12分)
710×3.02=
0.56÷1.2=
(商是两位小数时,写出剩余数)
6.73×1.08≈
(精确到百分位)
2.058÷2.1≈
(精确到十分位)
710×3.02=
0.56÷1.2=
(商是两位小数时,写出剩余数)
6.73×1.08≈
(精确到百分位)
2.058÷2.1≈
(精确到十分位)
答案
2. 2144.2 0.46……0.008 7.27 1.0 竖式略
3. 用简便方法计算。(16 分)
$4.8÷(0.2×3.2)$
$12.5×8.08$
$2.5×(0.125×3.2)$
$3.83×2.17+2.17×7.17-21.7$
$4.8÷(0.2×3.2)$
$12.5×8.08$
$2.5×(0.125×3.2)$
$3.83×2.17+2.17×7.17-21.7$
答案
3. 7.5 101 1 2.17
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