能简算的要简算:14×314+0.25×63495.6×27-17×95351.21×42-(4.46+750)1+45%÷0.9-78(1-34×25)÷(14+38).-数学
题文
能简算的要简算:
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答案
(1)
=
=
=
(2)95.6×27-17×95
=95.6×(27-17), =95.6×10, =956; (3)1.21×42-(4.46+
=1.21×42-4.6, =47.04-4.6, =42.44; (4)1+45%÷0.9-
=1+0.5-0.875, =1.5-0.875, =0.625; (5)(1-
=(1-
=
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