简算5.61-25+4.39-1353.74×5.8+62.6×0.58(12-13)+(14-15)+(17-110)+(114-115)+(128-130)-数学
题文
简算 5.61-
3.74×5.8+62.6×0.58 (
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答案
(1)5.61-
=(5.61+4.39)-(
=10-2, =8; (2)3.74×5.8+62.6×0.58, =3.74×5.8+6.26×5.8, =(3.74+6.26)×5.8, =10×5.8, =58; (3)(
=(
|
题文
简算 5.61-
3.74×5.8+62.6×0.58 (
|
答案
(1)5.61-
=(5.61+4.39)-(
=10-2, =8; (2)3.74×5.8+62.6×0.58, =3.74×5.8+6.26×5.8, =(3.74+6.26)×5.8, =10×5.8, =58; (3)(
=(
|