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计算:(1)(-2)+3;(2)30-(-12)-(-25)-18+(-10);(3)-314-235+534-825;(4)(-2)÷32×(-127)×(-0.25);(5)25×34-(-25)×12+25×(-14);(6)(12-23+116-
题目详情
计算:
(1)(-2)+3;
(2)30-(-12)-(-25)-18+(-10);
(3)-3
-2
+5
-8
;
(4)(-2)÷
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
-2
+5
-8
;
(4)(-2)÷
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
1 1 4 4
+5
-8
;
(4)(-2)÷
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
3 3 5 5
-8
;
(4)(-2)÷
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
3 3 4 4
;
(4)(-2)÷
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
2 2 5 5
×(-1
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
3 3 2 2
)×(-0.25);
(5)25×
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
2 2 7 7
-(-25)×
+25×(-
);
(6)(
-
+1
-
)÷(-
).
3 3 4 4
+25×(-
);
(6)(
-
+1
-
)÷(-
).
1 1 2 2
);
(6)(
-
+1
-
)÷(-
).
1 1 4 4
-
+1
-
)÷(-
).
1 1 2 2
+1
-
)÷(-
).
2 2 3 3
-
)÷(-
).
1 1 6 6
)÷(-
).
5 5 12 12
).
1 1 12 12
(1)(-2)+3;
(2)30-(-12)-(-25)-18+(-10);
(3)-3
1 |
4 |
3 |
5 |
3 |
4 |
2 |
5 |
(4)(-2)÷
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
4 |
3 |
5 |
3 |
4 |
2 |
5 |
(4)(-2)÷
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
4 |
3 |
5 |
3 |
4 |
2 |
5 |
(4)(-2)÷
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
3 |
5 |
3 |
4 |
2 |
5 |
(4)(-2)÷
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
3 |
4 |
2 |
5 |
(4)(-2)÷
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
2 |
5 |
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
3 |
2 |
2 |
7 |
(5)25×
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
2 |
7 |
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
3 |
4 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
2 |
1 |
4 |
(6)(
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
4 |
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
2 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
2 |
3 |
1 |
6 |
5 |
12 |
1 |
12 |
1 |
6 |
5 |
12 |
1 |
12 |
5 |
12 |
1 |
12 |
1 |
12 |
▼优质解答
答案和解析
(1)原式=1;
(2)原式=30+12+25-18-10=70-28=42;
(3)原式=-3
+5
-2
-8
=2
-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 14 4 4+5
-2
-8
=2
-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
3 3 34 4 4-2
-8
=2
-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
3 3 35 5 5-8
=2
-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
2 2 25 5 5=2
-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 12 2 2-11=-8
;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 12 2 2;
(4)原式=-2×
×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
2 2 23 3 3×
×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
9 9 97 7 7×
=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 14 4 4=-
;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
3 3 37 7 7;
(5)原式=25×(
+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
3 3 34 4 4+
-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 12 2 2-
)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 14 4 4)=25;
(6)原式=(
-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
1 1 12 2 2-
+
-
)×(-12)=-6+8-14+5=13-20=-7.
2 2 23 3 3+
-
)×(-12)=-6+8-14+5=13-20=-7.
7 7 76 6 6-
)×(-12)=-6+8-14+5=13-20=-7.
5 5 512 12 12)×(-12)=-6+8-14+5=13-20=-7.
(2)原式=30+12+25-18-10=70-28=42;
(3)原式=-3
1 |
4 |
3 |
4 |
3 |
5 |
2 |
5 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
4 |
3 |
4 |
3 |
5 |
2 |
5 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
3 |
4 |
3 |
5 |
2 |
5 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
3 |
5 |
2 |
5 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
2 |
5 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
2 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
2 |
(4)原式=-2×
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
2 |
3 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
9 |
7 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
4 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
3 |
7 |
(5)原式=25×(
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
3 |
4 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
2 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
4 |
(6)原式=(
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
1 |
2 |
2 |
3 |
7 |
6 |
5 |
12 |
2 |
3 |
7 |
6 |
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12 |
7 |
6 |
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12 |
5 |
12 |
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