五年级简便运算17.5+3.7×4.5
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五年级简便运算17.5+3.7×4.5
五年级简便运算17.5+3.7×4.5
五年级简便运算17.5+3.7×4.5
17.5+3.7×4.5=17.5+16.65=34.15
17.5+3.7×4.5
=3.7×5+3.7×4.5
=(4.5+5)×3.7
=9.9×3.7
=(10-0.1)×3.7
=37-0.37
=36.63
17.5+3.7*4.5
=17.5+16.65
=34.15
=3.7*4.5+3.7*4.5
=3.7*(4.5+4.5)
=3.7*9
=33.3