- 2024-05-03颖儿yuki
8-1.5-7×4
=58.2×7+1.25=112(块)
(2) (1.8)×2-2×1.6×1/.2=1.6(米)
(7×1.69(平方米)
(3)2.2=46平方米
(4)(7×4+7×2.25平方米 7x4÷0.2+14-3
=46.8×2-3-28
=117.5
=17.6+4×1.6(平方米)
( 86.8+4×2(1) 500x500=250000平方毫米=0.2×2)×2=21.6×2+14-3
=35.1×2
=47.6-31
=86;4)×110%×2
=21.65×1.6 )×2+7×4 -2×1
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