一、口算。
$9×4=$
$27÷3=$
$56÷7-5=$
$9×6=$
$5×9=$
$18÷2+19=$
$18÷9=$
$81÷9=$
$72÷9+32=$
$2×9=$
$64÷8=$
$63÷7+19=$
$63÷9=$
$9×9=$
$56÷7+26=$
$72÷8=$
$36÷9=$
$54÷9+12=$
$7×9=$
$56÷8=$
$36÷4-6=$
$1×9=$
$54÷6=$
$45÷9+36=$
$9×3=$
$40÷8=$
$32÷8+19=$
$9×8=$
$45÷5=$
$40÷5+23=$
$9×4=$
$27÷3=$
$56÷7-5=$
$9×6=$
$5×9=$
$18÷2+19=$
$18÷9=$
$81÷9=$
$72÷9+32=$
$2×9=$
$64÷8=$
$63÷7+19=$
$63÷9=$
$9×9=$
$56÷7+26=$
$72÷8=$
$36÷9=$
$54÷9+12=$
$7×9=$
$56÷8=$
$36÷4-6=$
$1×9=$
$54÷6=$
$45÷9+36=$
$9×3=$
$40÷8=$
$32÷8+19=$
$9×8=$
$45÷5=$
$40÷5+23=$
答案
1.36
2.9
3.3
4.54
5.45
6.28
7.2
8.9
9.40
10.18
11.8
12.28
13.7
14.81
15.34
16.9
17.4
18.18
19.63
20.7
21.3
22.9
23.9
24.41
25.27
26.5
27.23
28.72
29.9
30.31
2.9
3.3
4.54
5.45
6.28
7.2
8.9
9.40
10.18
11.8
12.28
13.7
14.81
15.34
16.9
17.4
18.18
19.63
20.7
21.3
22.9
23.9
24.41
25.27
26.5
27.23
28.72
29.9
30.31
二、在()里填合适的数。
8×(
(
28÷(
5×(
8×(
8×(
5
)=40 18÷(6
)=3 (54
)÷9−2=4(
36
)÷4=9 2×(8
)=16 (8
)×6+8=5628÷(
7
)=4 8×(8
)=64 2×(9
)−2=165×(
7
)=35 7×(9
)=63 45÷(5
)−4=58×(
3
)=24 (9
)×9=81 9×(6
)+4=58答案
1.5
2.6
3.54
4.36
5.8
6.8
7.7
8.8
9.9
10.7
11.9
12.5
13.3
14.9
15.6
2.6
3.54
4.36
5.8
6.8
7.7
8.8
9.9
10.7
11.9
12.5
13.3
14.9
15.6
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