
计算:①1035+(?356)+(?835)+(?216) ②(145?256+3710?4815)÷(?130)
计算:①1035+(?356)+(?835)+(?216)②(145?256+3710?4815)÷(?130)....
计算:①1035+(?356)+(?835)+(?216) ②(145?256+3710?4815)÷(?130).
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①10
+(-3
)+(-8
)+(-2
),
=10
-8
-3
-2
,
=2-6,
=-4;
②(1
-2
+3
-4
)÷(-
),
=(
-
+
-
)×(-30),
=
×(-30)-
×(-30)+
×(-30)-
×(-30),
=-54+85-111+136,
=221-165,
=56.
3 |
5 |
5 |
6 |
3 |
5 |
1 |
6 |
=10
3 |
5 |
3 |
5 |
5 |
6 |
1 |
6 |
=2-6,
=-4;
②(1
4 |
5 |
5 |
6 |
7 |
10 |
8 |
15 |
1 |
30 |
=(
9 |
5 |
17 |
6 |
37 |
10 |
68 |
15 |
=
9 |
5 |
17 |
6 |
37 |
10 |
68 |
15 |
=-54+85-111+136,
=221-165,
=56.
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