用简便方法计算8.37-3.25-(1.37+2.25)3.375÷514-38×4219÷13+13÷9+11÷13+14÷9+6÷139966×6+6678
用简便方法计算8.37-3.25-(1.37+2.25)3.375÷514-38×4219÷13+13÷9+11÷13+14÷9+6÷139966×6+6678×1820...
用简便方法计算8.37-3.25-(1.37+2.25)3.375÷514-38×4219÷13+13÷9+11÷13+14÷9+6÷139966×6+6678×182013+2012×20142013×2014?13762÷38+82917÷83
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(1)8.37-3.25-(1.37+2.25)
=(8.37-1.37)-(3.25+2.25)
=7-5.5
=1.5;
(2)3.375÷5
-
×
=3
×
-
×
=(3
-
)×
=3×
=
;
(3)9÷13+13÷9+11÷13+14÷9+6÷13
=
+
+
+
+
=(
+
+
)+(
+
)
=2+3
=5;
(4)9966×6+6678×18
=3322×18+6678×18
=(3322+6678)×18
=10000×18
=180000;
(5)
=
=
=1;
(6)3762÷38+82917÷83
=(3800-38)÷38+(83000-83)÷83
=100-1+1000-1
=1098.
=(8.37-1.37)-(3.25+2.25)
=7-5.5
=1.5;
(2)3.375÷5
1 |
4 |
3 |
8 |
4 |
21 |
=3
3 |
8 |
4 |
21 |
3 |
8 |
4 |
21 |
=(3
3 |
8 |
3 |
8 |
4 |
21 |
=3×
4 |
21 |
=
4 |
7 |
(3)9÷13+13÷9+11÷13+14÷9+6÷13
=
9 |
13 |
13 |
9 |
11 |
13 |
14 |
9 |
6 |
13 |
=(
9 |
13 |
11 |
13 |
6 |
13 |
13 |
9 |
14 |
9 |
=2+3
=5;
(4)9966×6+6678×18
=3322×18+6678×18
=(3322+6678)×18
=10000×18
=180000;
(5)
2013+2012×2014 |
2013×2014?1 |
=
2014+2012×2014?1 |
2013×2014?1 |
=
2013×2014?1 |
2013×2014?1 |
=1;
(6)3762÷38+82917÷83
=(3800-38)÷38+(83000-83)÷83
=100-1+1000-1
=1098.
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