如题所述
第1个回答 2021-09-10
3.4×7×1.5
=3.4×10.5
=3.4×(10+0.5)
=34+1.7
=35.7
=3.4×10.5
=3.4×(10+0.5)
=34+1.7
=35.7
第2个回答 2021-09-09
原式=3.4x10.5
=3.4x(10+0.5)
=34+1.7
=35.7
=3.4x(10+0.5)
=34+1.7
=35.7
第3个回答 2021-09-09
3.4×7×1.5
=(1.7×2)×7×1.5
=1.7×7×(2×1.5)
=11.9×3
=35.7
=(1.7×2)×7×1.5
=1.7×7×(2×1.5)
=11.9×3
=35.7
第4个回答 2021-09-09
3.4x7x1.5
=3.4x(7x1.5)
=3.4x10.5
=3.4x(10+0.5)
=3.4x10+3.4x0.5
=34+1.7
=35.7
=3.4x(7x1.5)
=3.4x10.5
=3.4x(10+0.5)
=3.4x10+3.4x0.5
=34+1.7
=35.7
第5个回答 2021-09-10
3.4×7×1.5的简便方法?
=3.4×10.5
=35.7
望采纳 谢谢~~
=3.4×10.5
=35.7
望采纳 谢谢~~