一、口算。
$5×4=$
$28÷4=$
$9×4=$
$9×9=$
$7×6=$
$10÷2=$
$5×3=$
$30÷5=$
$27÷9=$
$7×7=$
$3×7=$
$24÷6=$
$8×6=$
$7×2=$
$35÷7=$
$72÷8=$
$20÷4=$
$18÷2=$
$5×9=$
$21÷7=$
$3×6÷9=$
$20÷4÷5=$
$25÷5×3=$
$2×3×3=$
$63÷7×4=$
$42÷6×5=$
$2×2×9=$
$4×2×8=$
$49÷7×9=$
$6×6÷9=$
$5×4=$
$28÷4=$
$9×4=$
$9×9=$
$7×6=$
$10÷2=$
$5×3=$
$30÷5=$
$27÷9=$
$7×7=$
$3×7=$
$24÷6=$
$8×6=$
$7×2=$
$35÷7=$
$72÷8=$
$20÷4=$
$18÷2=$
$5×9=$
$21÷7=$
$3×6÷9=$
$20÷4÷5=$
$25÷5×3=$
$2×3×3=$
$63÷7×4=$
$42÷6×5=$
$2×2×9=$
$4×2×8=$
$49÷7×9=$
$6×6÷9=$
答案
1.20
2.21
3.2
4.7
5.4
6.1
7.36
8.48
9.15
10.81
11.14
12.18
13.42
14.5
15.36
16.5
17.9
18.35
19.15
20.5
21.36
22.6
23.9
24.64
25.3
26.45
27.63
28.49
29.3
30.4
2.21
3.2
4.7
5.4
6.1
7.36
8.48
9.15
10.81
11.14
12.18
13.42
14.5
15.36
16.5
17.9
18.35
19.15
20.5
21.36
22.6
23.9
24.64
25.3
26.45
27.63
28.49
29.3
30.4
二、填表。


答案
1.48
2.35
3.9
4.24
5.9
6.7
7.27
8.9
9.7
10.7
11.8
12.6
13.8
14.9
15.24
16.5
2.35
3.9
4.24
5.9
6.7
7.27
8.9
9.7
10.7
11.8
12.6
13.8
14.9
15.24
16.5
登录