(1)1462-369-631=462
(2)60506-19460÷35=59950
(3)23072÷412×65=3640
(4)36÷9×8=32
(5)4×9-25=11
(6)28÷7+49=53
(7)63÷9÷7=1
(8)42÷6-7=0
(9)3+12÷4=6
(10)184×38+116×38-11300=100
(11)(79691-46354)÷629=53
(12)325÷13×(266-250)=400
(13)74+100÷5×3=134
(14)(440-280)×(300-260)=6400
(15)100+25×3-90=85
(16)90÷2+136=181
(17)70×74+100÷5=5200
(18)38+116×7+23=873
(19)369-(631÷5)×3=-9.6
(20)2700×(506-499)÷900 =7/300
(21)33.02-(148.4-90.85)÷2.5=10
(22)(1÷1-1)÷5.1 =0
(23)18.1+(3-0.299÷0.23)×1=19.8
(24)2.881÷0.43-0.24×3.5=5.86
(25)28-(3.4+1.25×2.4)=21.6
(26)2.55×7.1+2.45×7.1=35.5
(27)777×9+1111×3=10326
(28)(31.8+3.2×4)÷5=8.92
(29)31.5×4÷(6+3)=14
(30)0.64×25×7.8+2.2=127
62×7.1+2.9,
=440.2+2.9,
=443.1;
4.2×0.25,
=(4+0.2)×0.25,
=4×0.25+0.2×0.25,
=1+0.05,
=1.05;
5.2×4.3+0.8×4.3,
=(5.2+0.8)×4.3,
=6×4.3,
=25.8.
8.5+1.5÷0.25×4,
=8.5+6×4,
=8.5+24,
=32.5.
0.25×0.8+2.5%
=0.2+2.5%,
=0.225;
32×125×2.5,
=4×8×125×2.5,
=8×125×(4×2.5),
=1000×10,
=10000;
94÷(6.84×8.5-31.46÷0.55),
=94÷(58.14-57.2),
=94÷0.94,
=100.
13÷0.4÷2.5,
=13÷(0.4×2.5),
=13÷1,
=13;
1.25×2.5×0.8,
=(1.25×0.8)×2.5,
=1×2.5,
=2.5;
1.5×101-1.5,
=1.5×(101-1),
=1.5×100,
=150;
4.8×101,
=4.8×100+4.8×1,
=480+4.8,
=484.8.
3.25×4.7-7.8,
=15.275-7.8,
=7.475;
0.57+0.43×0.24,
=0.57+0.1032,
=0.6732.
945÷5÷3,
=189÷3,
=63;
152×3÷2,
=456÷2,
=228;
43×12×6,
=516×6,
=3096.
200+25×33,
=200+825,
=1025;
(25+26)×48,
=51×48,
=2448.
576-(290+107),
=576-397,
=179;
649+124-556,
=773-556,
=217.
4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92.