题目内容
口算．
17
×2＋4＝ 16×4＝
答案：38;64
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相关题目
口算．
|
(1) |
(2) |
(3) |
(4) |
|
16 ÷3= |
14 ×7= |
2 ×4×9= |
81 ÷9÷3= |
|
28 ÷4= |
12 ×6= |
3 ×2×8= |
56 ÷7÷4= |
|
35 ÷5= |
17 ×3= |
5 ×2×6= |
48 ÷8÷2= |
|
40 ÷8= |
13 ×4= |
2 ×2×7= |
50 ÷5÷5= |
|
49÷7= |
15 ×2= |
3 ×3×5= |
72 ÷9÷2= |
口算．
|
(1) |
(2) |
(3) |
(4) |
|
16 ÷3= |
14 ×7= |
2 ×4×9= |
81 ÷9÷3= |
|
28 ÷4= |
12 ×6= |
3 ×2×8= |
56 ÷7÷4= |
|
35 ÷5= |
17 ×3= |
5 ×2×6= |
48 ÷8÷2= |
|
40 ÷8= |
13 ×4= |
2 ×2×7= |
50 ÷5÷5= |
|
49÷7= |
15 ×2= |
3 ×3×5= |
72 ÷9÷2= |
口算．
|
(1) |
(2) |
(3) |
(4) |
|
24 ÷3= |
12 ×5= |
4 ×7＋25= |
430 －160= |
|
36 ÷4= |
14 ×3= |
45 ÷5＋8= |
390 ＋390= |
|
45 ÷5= |
17 ×4= |
10 ×6－12= |
820 －650= |
|
64 ÷8= |
16 ×2= |
63 ＋78＋0= |
594 －9= |
|
72 ÷9= |
13 ×5= |
27 ÷3－9= |
798 ＋7= |