题目内容
给下列算式选择正确答案.
[
]
(1)62 -10 |
(2)37 +6 |
(3)48 +4 |
|||
(4)63 +7 |
(5)75 -5 |
(6)51 -8 |
|||
(7)70 -2 |
(8)61 -9 |
(9)63 +5 |
|||
(10)90 -20 |
|||||
A .43 |
B .52 |
C .68 |
D .70 |
答案:B;A;B;D;D;A;C;B;C;D
解析:
解析:
(1)62-10=52,选B. (2)37+6=43,选A. (3)48+4=52,选B. (4)63+7=70,选D. (5)75-5=70,选D. (6)51-8=43,选A. (7)70-2=68,选C. (8)61-9=52,选B. (9)63+5=68,选C. (10)90-20=70,选D.
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给下列算式选择正确答案.
[
]
(1)62 -10 |
(2)37 +6 |
(3)48 +4 |
|||
(4)63 +7 |
(5)75 -5 |
(6)51 -8 |
|||
(7)70 -2 |
(8)61 -9 |
(9)63 +5 |
|||
(10)90 -20 |
|||||
A .43 |
B .52 |
C .68 |
D .70 |
给下列算式选择正确答案.
[
]
(1)51-8 |
(2)70-2 |
(3)61-9 |
|||
(4)63+5 |
(5)90-20 |
||||
A .43 |
B .52 |
C .68 |
D .70 |
给下列算式选择正确答案.
[
]
(1)51-8 |
(2)70-2 |
(3)61-9 |
|||
(4)63+5 |
(5)90-20 |
||||
A .43 |
B .52 |
C .68 |
D .70 |