计算下面各题,能简算的要简算 (1)596+612÷12×4 (2)(112-196÷14)×27 (3)88×125
计算下面各题,能简算的要简算(1)596+612÷12×4(2)(112-196÷14)×27(3)88×125(4)3.9+5.02+3.98+1.1(5)(167+2...
计算下面各题,能简算的要简算 (1)596+612÷12×4 (2)(112-196÷14)×27 (3)88×125 (4)3.9+5.02+3.98+1.1 (5)(167+253)÷(20-5) (6)25×41-25.
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(1)596+612÷12×4
=596+51×4
=596+204
=800;
(2)(112-196÷14)×27
=(112-14)×27
=98×27
=100×27-2×27
=2700-54
=2646;
(3)88×125
=11×(8×125)
=11×1000
=11000;
(4)3.9+5.02+3.98+1.1
=(3.9+1.1)+(5.02+3.98)
=5+9
=14;
(5)(167+253)÷(20-5)
=420÷15
=28;
(6)25×41-25
=25×(41-1)
=25×40
=1000.
=596+51×4
=596+204
=800;
(2)(112-196÷14)×27
=(112-14)×27
=98×27
=100×27-2×27
=2700-54
=2646;
(3)88×125
=11×(8×125)
=11×1000
=11000;
(4)3.9+5.02+3.98+1.1
=(3.9+1.1)+(5.02+3.98)
=5+9
=14;
(5)(167+253)÷(20-5)
=420÷15
=28;
(6)25×41-25
=25×(41-1)
=25×40
=1000.
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