试题与答案

口算大比拼5×0=510×7=1-34=0+0=297×5≈33-22=3000

题型:解答题

题目:

口算大比拼
5×0=
510×7=1-
3
4
=
0+0=297×5≈
3
3
-
2
2
=
3000×2=88×8=
7
9
-
5
9
=
400×3=
26÷5=
1
6
+
5
6
=
2×6+3=875+25=5+5×6=

答案:

5×0=0,510×7=3570,1-
3
4
=
1
4
0+0=0.297×5≈1500,
3
3
-
2
2
=1,
3000×2=6000,88×8=704,
7
9
-
5
9
=
2
9
400×3=1200,
26÷5=5.2,
1
6
+
5
6
=1,
2×6+3=15,875+25=900,5+5×6=35.

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