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(2012•武定县模拟)混合运算.(能简算的要简算)45×102=;716×40-516÷140=;7.85-1.89-2.11+2.15=;3450+450÷18×15=;40÷[(34-13)×3]=;168.8÷(24.3×2-6.4)=
题目详情
(2012•武定县模拟)混合运算.(能简算的要简算)
45×102=______;
×40-
÷
=______;
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
-
)×3]=______;
168.8÷(24.3×2-6.4)=______.
×40-
÷
=______;
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
-
)×3]=______;
168.8÷(24.3×2-6.4)=______.
7 7 16 16
÷
=______;
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
-
)×3]=______;
168.8÷(24.3×2-6.4)=______.
5 5 16 16
=______;
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
-
)×3]=______;
168.8÷(24.3×2-6.4)=______.
1 1 40 40
-
)×3]=______;
168.8÷(24.3×2-6.4)=______.
3 3 4 4
)×3]=______;
168.8÷(24.3×2-6.4)=______.
1 1 3 3
45×102=______;
7 |
16 |
5 |
16 |
1 |
40 |
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
7 |
16 |
5 |
16 |
1 |
40 |
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
7 |
16 |
5 |
16 |
1 |
40 |
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
5 |
16 |
1 |
40 |
7.85-1.89-2.11+2.15=______;
3450+450÷18×15=______;
40÷[(
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
1 |
40 |
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
3 |
4 |
1 |
3 |
168.8÷(24.3×2-6.4)=______.
1 |
3 |
▼优质解答
答案和解析
(1)45×102
=45×(100+2),
=45×100+45×2,
=4500+90,
=4590;
(2)
×40-
÷
=
×40-
×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 7 716 16 16×40-
÷
=
×40-
×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 5 516 16 16÷
=
×40-
×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 1 140 40 40
=
×40-
×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 7 716 16 16×40-
×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 5 516 16 16×40,
=(
-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 7 716 16 16-
)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 5 516 16 16)×40,
=
×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 1 18 8 8×40,
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
3 3 34 4 4-
)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 1 13 3 3)×3]
=40÷[
×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 5 512 12 12×3],
=40×
,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
4 4 45 5 5,
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
=45×(100+2),
=45×100+45×2,
=4500+90,
=4590;
(2)
7 |
16 |
5 |
16 |
1 |
40 |
=
7 |
16 |
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 |
16 |
5 |
16 |
1 |
40 |
=
7 |
16 |
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 |
16 |
1 |
40 |
=
7 |
16 |
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 |
40 |
=
7 |
16 |
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 |
16 |
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 |
16 |
=(
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
7 |
16 |
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 |
16 |
=
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 |
8 |
=5;
(3)7.85-1.89-2.11+2.15
=7.85+2.15-(1.89+2.11),
=10-4,
=6;
(4)3450+450÷18×15
=3450+25×15,
=3450+375,
=3825;
(5)40÷[(
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
3 |
4 |
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
1 |
3 |
=40÷[
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
5 |
12 |
=40×
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
4 |
5 |
=32;
(6)168.8÷(24.3×2-6.4)
=168.8÷(48.6-6.4),
=168.8÷42.2,
=4.
故答案为:4590,5,6,3825,32,4.
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