100道脱式简便计算 脱式计算.(能简算的要简算) 6.8×0.75÷0.5 13.5÷2.5-2.75 0
脱式计算.(能简算的要简算) 6.8×0.75÷0.5 13.5÷2.5-2.75 0
脱式计算.(能简算的要简算) 6.8×0.75÷0.5 13.5÷2.5-2.75 0
(1)6.8×0.75÷0.5,=68×(0.75÷0.5),
=68×1.5,
=102;(2)13.5÷2.5-2.75,
=5.4-2.75,
=2.65;
(3)0.125×0.25×32,
=0.125×0.25×4×8,
=(0.125×8)×(0.25×4),
=1×1,
=1;
(4)0.9+9.9+99.9+0.3,
=(1-0.1)+(10-0.1)+(100-0.1)+0.3,
=111-0.3+0.3,
=111.
脱式计算.(能简算的要简算)2.75×1.07+7.25×1.07; &...
(1)2.75×1.07+7.25×1.07
=(2.75+7.25)×1.07
=10×1.07
=10.7;
(2)0.18×[0.17÷(3.08+5.42)]
=0.18×[0.17÷8.5]
=0.18×0.02
=0.0036;
(3)16.8÷12.5÷0.8×0.5
=16.8÷(12.5×0.8)×0.5
=16.8÷10×0.5
=1.68×0.5
=0.84;
(4)0.8×5.125
=0.8×5+0.8×0.125
=4+0.1
=4.1.
脱式计算.能简算的要简算.6.8×3.6+4.27
6.8*3.6+4.27
=24.48+4.27
=28.75
脱式计算(能简算的要简算)2.5×1.37×0.4 4.8×0.25 0.
(1)2.5×1.37×0.4,
=2.5×0.4×1.37,
=1×1.37,
=1.37;
(2)4.8×0.25,
=1.2×4×0.25,
=1.2×(4×0.25),
=1.2×1,
=1.2;
(3)0.89×4.8+0.89×5.2,
=0.89×(4.8+5.2),
=0.89×10,
=8.9;
(4)101×0.78,
=(100+1)×0.78,
=100×0.78+1×0.78,
=78+0.78,
=78.78;
(5)8.8×1.25,
=1.1×8×1.25,
=1.1×(8×1.25),
=1.1×10,
=11;
(6)4.3×0.8×5,
=4.3×(0.8×5),
=4.3×4,
=17.2.
脱式计算能简算的要简算2.5×1.6×1.25
2.5×1.6×1.25
=2.5x(1+0.6)x1.25
=(2.5+2.5x0.6)x1.25
=(2.5+1.5)x1.25
=4x1.25
=5
脱式计算,能简算的要简算:(0.75+12)÷14×5% &...
(1)(0.75+
1 2)÷
1 4×5%
=(0.75+0.50)×4×0.05,
=1.25×4×0.05,
=5×0.05,
=0.25;
(2)32×1.25×0.25
=4×8×1.25×0.25,
=4×0.25×(1.25×8),
=1×10,
=10;
(3)
31 50×101-
31 50=(101-1)×
31 50,
=
×100,
=62;
(4)5.8×[1÷(2.1-2.09)]
=5.8×[1÷0.01],
=5.8×100,
=580.
49.2-0.5X0.5-8.75(脱式计算)能简算的要简算
49.2-0.5X0.5-8.75
=49.2-0.25-8.75
=49.2-(0.25+8.75)
=49.2-9
=40.2
脱式计算.(能简算的要简算)6.8×0.26+3.75 (9-
(1)6.8×0.26+3.75
=1.768+3.75,
=5.518;

(2)(9-2.35)×0.48,
=6.65×0.48,
=3.192;
(3)4×O.8×2.5×1.25,
=(4×2.5)×(O.8×1.25),
=10×1,
=10;
(4)2.75×102,
=2.75×(100+2),
=2.75×100+2.75×2,
=275+5.5,
=280.5.
脱式计算(能简算的要简算)15.02-6.8-1.02 &n...
(1)15.02-6.8-1.02
=15.02-1.02-6.8
=14-6.8
=7.2
(2)5.4×11-5.4
=5.4×(11-1)
=5.4×10
=54
(3)4.2×(6.18-3.03)
=4.2×3.15
=13.23
(4)1.2÷[2.5×(4.3-2.7)]
=1.2÷[2.5×1.6]
=1.2÷4
=0.3