想一想,填.一填.(1)23=2×43×()=8()(2)23=2+43+()=10()(3)23=2+()3+27=()30.-数学

题目简介

想一想,填.一填.(1)23=2×43×()=8()(2)23=2+43+()=10()(3)23=2+()3+27=()30.-数学

题目详情

想一想,填.一填.
(1)
2
3
=
2×4
3×()
=
8
()

(2)
2
3
=
2+4
3+()
=
10
()

(3)
2
3
=
2+()
3+27
=
()
30
题型:填空题难度:中档来源:不详

答案

(1)class="stub"2
3
=class="stub"2×4
3×4
=class="stub"8
12


(2)class="stub"2
3
=class="stub"2+4
3+6
=class="stub"10
15


(3)class="stub"2
3
=class="stub"2+18
3+27
=class="stub"20
30

故答案为:4,12;6,15;18,20.

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