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3.6+4.4= 0.375+0.625= 5-0.12=
0.48+5.9= 4.3-1.6= 0.74-0.4=
8×(125-25)= 48+52÷4= 160+40÷4=
(12-12)÷(12+12)= 26×8÷26×8=
分析:根据小数和整数加减方法的计算方法进行计算;
26×8÷26×8按照从左向右的顺序进行计算.
解答:解:
3.6+4.4=8, 0.375+0.625=1, 5-0.12=4.88,
0.48+5.9=6.38, 4.3-1.6=2.7, 0.74-0.4=0.34,
8×(125-25)=800, 48+52÷4=61, 160+40÷4=170,
(12-12)÷(12+12)=0, 26×8÷26×8=64.
点评:口算时,注意运算符号和数据,然后再进一步计算.
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