脱式计算,能简算的要简算:3- 5 18 × 27 40 - 13 16 = 7 9
脱式计算,能简算的要简算:3-518×2740-1316=79÷115+29×511=65×101-65=70.2÷[(5.3-1.4)×0.2]=45×544=14×4...
脱式计算,能简算的要简算:3- 5 18 × 27 40 - 13 16 = 7 9 ÷ 11 5 + 2 9 × 5 11 = 65×101-65= 70.2÷[(5.3-1.4)×0.2]= 45× 5 44 = 1 4 ×4÷ 1 4 ×4=
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(1)3-
=3-
=3-(
=3-1, =2; (2)
=
=
=
(3)65×101-65, =65×(101-1), =65×100, =6500; (4)70.2÷[(5.3-1.4)×0.2], =70.2÷(3.9×0.2), =70.2÷0.78, =90; (5)45×
=44×
=5
(6)
=1×4×4, =16. |
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