2025年学霸的暑假计算暑期大通关四升五数学第34页答案
1. 直接写出得数。(20☆)
$1.6÷4= $
0.4
$27÷0.3= $
90
$45×0.2= $
9
$4.25÷5= $
0.85

$3.1×8= $
24.8
$9.6÷0.8= $
12
$0.19×5= $
0.95
$6.5÷0.5= $
13

$0.57÷3= $
0.19
$6×3.06= $
18.36
$0.72÷4= $
0.18
$3.66÷0.6= $
6.1

$0.81÷0.3= $
2.7
$3.5×0.3= $
1.05
$0.84÷0.6= $
1.4
$0.72÷0.03= $
24

$7.14÷0.7= $
10.2
$7.6×0.4= $
3.04
$1.72÷0.2= $
8.6
$0.07×0.06= $
0.0042

$0.324÷0.6= $
0.54
$0.7×0.43= $
0.301
$1.69÷13= $
0.13
$4.96÷0.8= $
6.2

$0.7×5= $
3.5
$1.05×0.8= $
0.84
$0.96÷0.2= $
4.8
$0.5×4= $
2

$6.06×7= $
42.42
$3.44÷0.8= $
4.3
$0.57÷1.9= $
0.3
$0.64÷4= $
0.16

$5.4÷0.3= $
18
$7.5÷5= $
1.5
$7.8÷0.6= $
13
$0.61×0.8= $
0.488

$0.45÷0.3= $
1.5
$0.27÷0.3= $
0.9
$22.5÷0.3= $
75
$2.34÷0.02= $
117

答案

0.4 90 9 0.85
24.8 12 0.95 13
0.19 18.36 0.18 6.1
2.7 1.05 1.4 24
10.2 3.04 8.6 0.0042
0.54 0.301 0.13 6.2
3.5 0.84 4.8 2
42.42 4.3 0.3 0.16
18 1.5 13 0.488
1.5 0.9 75 117
2. 按要求用代入法计算下面含字母的式子的值。(16☆)
(1)当$m = 4.8$,$n = 0.5$时
$m + n = $
5.3
$m×n = $
2.4
$m - n = $
4.3
$m÷n = $
9.6

(2)当$x = 2$时
$x÷0.25 = $
8
$2.5×x + 4 = $
9
$(x + 10.5)×8 = $
100
$2.52÷(x - 0.8) = $
2.1

答案

(1)5.3 2.4 4.3 9.6
(2)8 9 100 2.1
3. 列竖式计算,带*的要验算。(14☆)
$0.26×1.3 = $
0.338
*$2.196÷0.12 = $
18.3
*$35.85÷7.5 = $
4.78

答案

0.338 18.3 4.78