题目内容
计算
(1)23-17-(-7)+(-16)
(2)26×
-26
-26×(-
)
(3)(
-
-
)×(-36)÷(-2)
(4)-3×(-
)2-22×(
-1)-8÷(-
)3.
(1)23-17-(-7)+(-16)
(2)26×
5 |
8 |
1 |
8 |
1 |
4 |
(3)(
1 |
4 |
1 |
9 |
1 |
12 |
(4)-3×(-
2 |
3 |
2 |
3 |
2 |
3 |
(1)原式=23-17+7-16=6+7-16=13-16=-3;
(2)原式=26×(
-
+
)=26×(
+
)=26×
=
;
(3)原式=(
-
-
)×(-36)×(-
)=(
-
-
)×18=
-2-=
=1;
(4)原式=-3×
-4×(-
)-8÷(-
)=-
+
+8×
=27.
(2)原式=26×(
5 |
8 |
1 |
8 |
1 |
4 |
2 |
4 |
1 |
4 |
3 |
4 |
39 |
2 |
(3)原式=(
1 |
4 |
1 |
9 |
1 |
12 |
1 |
2 |
1 |
4 |
1 |
9 |
1 |
12 |
9 |
2 |
3 |
2 |
(4)原式=-3×
4 |
9 |
1 |
3 |
8 |
27 |
4 |
3 |
4 |
3 |
27 |
8 |
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