六年级简算(3题)205×16 60×(4/3-2/3+2/5)5.37-(3.65+1.37)

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六年级简算(3题)205×16 60×(4/3-2/3+2/5)5.37-(3.65+1.37)
六年级简算(3题)
205×16
60×(4/3-2/3+2/5)
5.37-(3.65+1.37)

六年级简算(3题)205×16 60×(4/3-2/3+2/5)5.37-(3.65+1.37)
205×16
=(200+5)×16
=200×16+5×16
=3200+80
=3280
60×(4/3-2/3+2/5)
=60×(2/3+2/5)
=60×2/3+60×2/5
=40+24
=64
5.37-(3.65+1.37)
=5.37-1.37-3.65
=4-3.65
=0.35

=41×5×16=41×80=3280

2、60× 4/3-60×2/3+60×2/5
=80-40+24
=64

3、5.37-3.65-1.37
=5.37-1.37-3.65
=4-3.65
=0.35

205*4*4=820*4=3280
60*4/3-60*2/3+60*2/5=80-40+24=64
5.37-3.65-1.37=(5.37-1.37)-3.65=4-3.65=0.35