题目内容
口算. 720+200= |
9÷3= | 46+10= | 80-28= |
49÷7= | 42÷7= | 44-9= | 48÷6= |
55-20= | 35-6= | 400+320= | 33+60= |
9+46= | 28÷7= | 56÷7= | 820-400= |
46+30= | 6×8= | 35-8= | 24÷4= |
40÷8= | 21÷3= | 7×5= | 7+63= |
2×5= | 7×6= | 36+4= | 9×4= |
59-8= | 64÷8= | 72÷9= | 32÷4= |
40÷8= | 60-40= | 3800-2600= | 600+300= |
5×4= | 36-22= | 10÷5= | 1100-800= |
61+13= | 36÷4= | 83-29= | 5×9= |
15÷5= | 14+85= | 5×6= | 62-40= |
9×3= | 18÷2= |
分析:根据加减乘除四则运算的计算法则计算,加减法注意数位,不要对错位;乘除法要熟练运用乘法口诀求解.
解答:解:
720+200=920, | 9÷3=3, | 46+10=56, | 80-28=52, |
49÷7=7, | 42÷7=6, | 44-9=35, | 48÷6=8, |
55-20=35, | 35-6=29, | 400+320=720, | 33+60=93, |
9+46=55, | 28÷7=4, | 56÷7=8, | 820-400=420, |
46+30=76, | 6×8=48, | 35-8=27, | 24÷4=6, |
40÷8=5, | 21÷3=7, | 7×5=35, | 7+63=70, |
2×5=10, | 7×6=42, | 36+4=40, | 9×4=36, |
59-8=51, | 64÷8=8, | 72÷9=8, | 32÷4=8, |
40÷8=5, | 60-40=20, | 3800-2600=1200, | 600+300=900, |
5×4=20, | 36-22=14, | 10÷5=2, | 1100-800=300, |
61+13=74, | 36÷4=9, | 83-29=54, | 5×9=45, |
15÷5=3, | 14+85=99, | 5×6=30, | 62-40=22. |
9×3=27, | 18÷2=9. |
点评:本题主要考查了简单的整数加减乘除运算,计算时要细心,注意运算的准确性.
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