题目内容
直接写出得数:
0.35+0.45= | 150×6= | 0.72-0.28= | 0.57+0.9= |
3.8+0.12= | 0.6-0.37= | 10-0.09= | 5÷1000= |
0.5×100= | 322-99= | 101×87= | 1-0.01= |
36×25= | 10-6.5+3.5= | 0×735÷735= | 15×3÷15×3= |
分析:322-99,把99看成100-1,然后再计算;101×87把101化成100+1,然后用乘法分配律简算;36×25,把36分解成9×4,然后用乘法结合律简算;15×3÷15×3,运用乘法结合律简算;其它题目根据运算法则计算.
解答:解:0.35+0.45=0.8,
150×6=900,
0.72-0.28=0.44,
0.57+0.9=1.47,
3.8+0.12=3.92,
0.6-0.37=0.23,
10-0.09=9.91,
5÷1000=0.005,
0.5×100=50,
322-99=223,
101×87=8787,
1-0.01=0.99,
36×25=900,
10-6.5+3.5=7,
0×735÷735=0,
15×3÷15×3=9,
故答案为:0.8,900,0.44,1.47,3.92,0.23,9.91,0.005,50,223,8787,0.99,900,7,0,9.
150×6=900,
0.72-0.28=0.44,
0.57+0.9=1.47,
3.8+0.12=3.92,
0.6-0.37=0.23,
10-0.09=9.91,
5÷1000=0.005,
0.5×100=50,
322-99=223,
101×87=8787,
1-0.01=0.99,
36×25=900,
10-6.5+3.5=7,
0×735÷735=0,
15×3÷15×3=9,
故答案为:0.8,900,0.44,1.47,3.92,0.23,9.91,0.005,50,223,8787,0.99,900,7,0,9.
点评:本题考查了基本的计算,计算时要看清楚小数点的位置,不要对错了位.
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