知识大全 13.24-1.37+6.76+2.63简算
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13.24-1.37+6.76+2.63简算
13.24-1.37+6.76+2.63
=13.24+6.76-1.37+2.63
=20+2.63-1.37
=22.63-(2-0.63)
=22.63-2+0.63
=20.63+0.63
=20+0.63×2
=20+1.26
=21.26
13.24-1.37+6.76-2.63的简便运算
13.24-1.37+6.76-2.63的简便运算
=(13.24+6.76)-(1.37+2.63)
=20-4
=16
简算4.5×25%+1.3×14+2.2×0.25 5.02-1.37-2.63 &n...
4.5×25%+1.3×
1 |
4 |
+2.2×0.25,
=(4.5+1.3+2.2)×
1 |
4 |
,
=8×
1 |
4 |
,
=2;
5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
7 |
16 |
×40-
5 |
16 |
÷
1 |
40 |
,
=(
7 |
16 |
-
5 |
16 |
)×40,
=
1 |
8 |
×40,
=5.
38.69-13.24-6.76简便计算
38.69-13.24-6.76
=38.69-(13.24+6.76)
=38.69-20
=18.69
5.02-1.37-2.63=?简便运算
5.02-1.37-2.63
=5.02-(1.37+2.63)
=5.02-4
=1.02
1.37+0.68+2.63简便运算
1.37+0.68+2.63
=(1.37+2.63)+0.68
=4+0.68
=4.68
4.63-1.37 4.63-1.37简算
4.63-1.37+ 4.63-1.37
=(4.63+4.63)-(1.37+1.37)
=9.26-2.74
=6.52
,
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0.125+0.37+2.63 简算
0.125+(0.37+2.63)
3.24-0.78+6.76-0.22简算
3.24-0.78+6.76-0.22
=(3.24+6.76)-(0.78+0.22)
=10-1
=9
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