计算下面各题,能简算的要简算.(1)975-384÷16×25 (2) 39 144 ÷( 5 6 +
计算下面各题,能简算的要简算.(1)975-384÷16×25(2)39144÷(56+14)+1.65(3)5.25+345-1.8+234(4)9617×1.5-1....
计算下面各题,能简算的要简算.(1)975-384÷16×25 (2) 39 144 ÷( 5 6 + 1 4 )+1.65 (3)5.25+3 4 5 -1.8+2 3 4 (4) 96 17 ×1.5-1.5× 45 17 (5)12.5×0.25×32 (6)36×( 5 18 + 2 9 )÷2%
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(1)975-384÷16×25 =975-24×25, =975-600, =375; (2)
=
-
=
=0.25+1.65, =1.9; (3)5.25+3
=5.25+3.8-1.8+2.75, =5.25+2.75+(3.8-1.8), =8+2, =10; (4)
=(
=3×1.5, =4.5; (5)12.5×0.25×32 =12.5×0.25×8×4, =(12.5×8)×(0.25×4), =100×1, =100; (6)36×(
=[36×
=[10+8]÷2%, =18÷2%, =900. |
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