题目内容
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= |
答案:8,9,9,8,8;60,42,68,32,65;53,17,48,141,0;270,780,170,585,805
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