看谁算得准(能简算的要简算).762-450÷18×251.5×(3.8-0.8)÷0.98×27+57÷18(1-1100×70)÷2757÷[1÷(23-15)]45+(36+95)÷9.-数学
题文
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答案
(1)762-450÷18×25 =762-625, =137; (2)1.5×(3.8-0.8)÷0.9, =1.5×3÷0.9, =5; (3)8×
=8×
=(
=1×8, =8; (4)(1-
=(1-
=
=
(5)
=
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题文
|
答案
(1)762-450÷18×25 =762-625, =137; (2)1.5×(3.8-0.8)÷0.9, =1.5×3÷0.9, =5; (3)8×
=8×
=(
=1×8, =8; (4)(1-
=(1-
=
=
(5)
=
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