问题 解答题
直接写得数
300×5=
840÷4=420×1=96÷3=
600×4=630÷9=99×2=86+7=
120÷5=0÷9=700÷7=50×3=
80×4=56×3=30÷2=
3
8
+
4
8
=
5
7
-
3
7
=
3
5
+
2
5
=
9
9
-
6
9
=
3
6
-
3
6
=
答案

300×5=1500,840÷4=210,420×1=420,96÷3=32,
600×4=2400,630÷9=70,99×2=198,86+7=93,
120÷5=24,0÷9=0,700÷7=100,50×3=150,
80×4=320,56×3=168,30÷2=15,
3
8
+
4
8
=
7
8
5
7
-
3
7
=
2
7
3
5
+
2
5
=1,
9
9
-
6
9
=
1
3
3
6
-
3
6
=0,
故答案为:1500,210,420,32,2400,70,198,93,24,0,100,150,320,168,15,
7
8
2
7
,1,
1
3
,0.

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