题目内容
口算.
18÷2÷3=( )
28÷4×6=( )
72÷8×3=( )
答案:3;42;27
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口算.
(1) |
(2) |
(3) |
(4) |
1 8÷3= |
2 ×5×5= |
9 ×6+9÷3= |
3 ×8+16= |
18 ×3= |
30 ÷5÷3= |
8 ×7-8×3= |
7 ×4+28= |
35 ÷7= |
4 ×2×9= |
10 ×5+4×5= |
9 ×6-16= |
15 ×6= |
48 ÷6÷4= |
10 ×8-3×8= |
72 ÷8+18= |
45 ÷9= |
3 ×2×7= |
7 ×9+9×2= |
60 ÷6-6= |
口算.
(1) |
(2) |
(3) |
(4) |
1 8÷3= |
2 ×5×5= |
9 ×6+9÷3= |
3 ×8+16= |
18 ×3= |
30 ÷5÷3= |
8 ×7-8×3= |
7 ×4+28= |
35 ÷7= |
4 ×2×9= |
10 ×5+4×5= |
9 ×6-16= |
15 ×6= |
48 ÷6÷4= |
10 ×8-3×8= |
72 ÷8+18= |
45 ÷9= |
3 ×2×7= |
7 ×9+9×2= |
60 ÷6-6= |