分析:本题根据整数加法、减法、乘法与除法的运算法则计算即可.
解答:解:
200+6000=6200, |
1300-700=600, |
350+17=367, |
49+33=82, |
63-15=48, |
48÷8=6, |
490+80=570, |
70+50=120, |
440-290=150, |
36÷4=9, |
32÷8=4, |
47-34=13, |
1000-700=300, |
800+600=1400, |
240+320=560, |
80+25=105, |
54+93=147, |
24÷6=4, |
83-29=54, |
90-27=63, |
150+46=196, |
1500-500=1000, |
6×9=54, |
54+46=100, |
1300-300=1000, |
13+38=51, |
520+52=572, |
48÷6+102=110, |
3500+1000=4500, |
140-30=110, |
69+40=109, |
9×4+52=88, |
1600-900=700, |
3200-1000=2200, |
450+200=650, |
1000-800=200, |
47+38=85, |
200+350=550, |
570-80=450, |
146-79=67, |
34-17=17, |
60+300=360, |
42÷7=6, |
260+65=325, |
3100-400=2700, |
100-78=22, |
35÷5×9=63, |
63+58=121, |
49÷7=7, |
9×9+7=88, |
270-90=180, |
7×9-40=23, |
900+600=1500, |
24÷6=4, |
2×9÷3=6, |
720-650=70, |
44+58=102, |
300-15=285, |
84-56=28, |
75-46=29. |
点评:本题数量较多,完成时要细心,在保证做题质量的同时,要注意提高做题的速度.