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能简算的要简算,并写出简算过程.(1)[5.3-(4.98-5710)-1150]÷25%(2)1999÷199919992000(3)48%÷[3-(5.55×125-2.1÷25)](4)345×1234+7777÷35186+543.2×38.
题目详情
7 |
10 |
1 |
50 |
(2)1999÷1999
1999 |
2000 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
(4)3
4 |
5 |
35 |
186 |
7 |
10 |
1 |
50 |
(2)1999÷1999
1999 |
2000 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
(4)3
4 |
5 |
35 |
186 |
1 |
50 |
1999 |
2000 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
(4)3
4 |
5 |
35 |
186 |
1999 |
2000 |
2 |
5 |
2 |
5 |
(4)3
4 |
5 |
35 |
186 |
2 |
5 |
2 |
5 |
(4)3
4 |
5 |
35 |
186 |
2 |
5 |
4 |
5 |
35 |
186 |
4 |
5 |
35 |
186 |
35 |
186 |
▼优质解答
答案和解析
(1)[5.3-(4.98-5
)-1
]÷25%,
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
,
=1999÷
,
=1999×
,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
7 7 710 10 10)-1
]÷25%,
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
,
=1999÷
,
=1999×
,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1 1 150 50 50]÷25%,
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
,
=1999÷
,
=1999×
,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1999 1999 19992000 2000 2000,
=1999÷
,
=1999×
,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1999×2000+1999 1999×2000+1999 1999×2000+19992000 2000 2000,
=1999×
,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 2000 20001999×2000+1999 1999×2000+1999 1999×2000+1999,
=1999×
,
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 2000 20001999×(2000+1) 1999×(2000+1) 1999×(2000+1),
=
;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 2000 20002001 2001 2001;
(3)48%÷[3-(5.55×1
-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2 2 25 5 5-2.1÷
)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2 2 25 5 5)],
=0.48÷[3-(5.55×
-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
7 7 75 5 5-2.1×2.5)],
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
4 4 45 5 5×1234+7777÷
+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
35 35 35186 186 186+543.2×38,
=3.8×1234+7777×
+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
186 186 18635 35 35+5432×3.8,
=(1234+5432)×3.8+1111×
,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
186 186 1865 5 5,
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
7 |
10 |
1 |
50 |
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
1999 |
2000 |
=1999÷
1999×2000+1999 |
2000 |
=1999×
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
7 |
10 |
1 |
50 |
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
1999 |
2000 |
=1999÷
1999×2000+1999 |
2000 |
=1999×
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1 |
50 |
=[5.3-(4.98-5.7)-1.02]÷0.25,
=[5.3-4.98+5.7-1.02]÷0.25,
=[5.3+5.7-(4.98+1.02)]÷0.25,
=[11-6]÷0.25,
=5÷0.25,
=20;
(2)1999÷1999
1999 |
2000 |
=1999÷
1999×2000+1999 |
2000 |
=1999×
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1999 |
2000 |
=1999÷
1999×2000+1999 |
2000 |
=1999×
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
1999×2000+1999 |
2000 |
=1999×
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 |
1999×2000+1999 |
=1999×
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 |
1999×(2000+1) |
=
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2000 |
2001 |
(3)48%÷[3-(5.55×1
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2 |
5 |
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
2 |
5 |
=0.48÷[3-(5.55×
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
7 |
5 |
=0.48÷[3-(7.77-5.25)],
=0.48÷[3-2.52],
=0.48÷0.48,
=1;
(4)3
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
4 |
5 |
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
35 |
186 |
=3.8×1234+7777×
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
186 |
35 |
=(1234+5432)×3.8+1111×
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
186 |
5 |
=6666×3.8+1111×37.2,
=1111×6×3.8+1111×37.2,
=1111×(22.8+37.2),
=1111×60,
=66660.
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王老师买了0.6元和0.8元两种面值的邮票25张,共花了18.2元,两种邮票各有多少张?(25×0. 2020-12-31 …