直接写出得数:3511-399=______4.97+5.3=______2.5×1.6=______23÷14-14÷23=______1.9×5.1≈______31.9÷8.1≈______0.

题目简介

直接写出得数:3511-399=______4.97+5.3=______2.5×1.6=______23÷14-14÷23=______1.9×5.1≈______31.9÷8.1≈______0.

题目详情

直接写出得数:
3511-399=______
4.97+5.3=______2.5×1.6=______
2
3
÷
1
4
-
1
4
÷
2
3
=______
1.9×5.1≈______31.9÷8.1≈______0.32-0.23=____________:
1
3
=
1
3
题型:解答题难度:中档来源:不详

答案

3511-399=3112,4.97+5.3=10.27,2.5×1.6=4,class="stub"2
3
÷class="stub"1
4
-class="stub"1
4
÷class="stub"2
3
=class="stub"55
24
1.9×5.1≈10,31.9÷8.1≈4,0.32-0.23=0.082,class="stub"1
9
class="stub"1
3
=class="stub"1
3

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