| 200×6= | 101×8= | 40×5= | 58÷7= | 33×3= |
| 6×9-9= | 0×12+34= | 1- = | + = | - = |
| 解:200×6=1200, | 101×8=808, | 40×5=200, | 58÷7=8…2, | 33×3=99, |
| 6×9-9=45, | 0×12+34=34, | 1- = , | + =1, | - = . |
分析:计算6×9-9和0×12+34时,按照先算乘法再算加减法的顺序计算;
其它试题按照整数、小数、分数四则运算的计算方法计算即可.
点评:此题考查看算式直接写得数,根据数据和符号的特点,灵活选用算法即可.
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