95.6 ×18 -35.8×6
=95.6 ×3×6 -35.8×6
=（285.8 -35.8）×6
=250×6
=1500
（4/5+1/4)÷(7/3) +7/10
=（16/20+5/20)×(3/7) +7/10
=（21/20)×(3/7) +7/10
=9/20 +14/20
=23/20
=1又3/20
7.2 ×5 +3.8×5
=(7.2 +3.8)×5
=11×5
=55
12.5×0.25×32
=12.5×8×4×0.25
=100×1
=100
5/7 -2/9 +2/7 -4/9
=(5/7 +2/7) -(2/9 +4/9)
=1-1
=0
(5/9 -1/16)×18
=5/9 ×18 -1/16 ×18
=10 - 9/8
=8又7/8
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