题目内容
计算:
①108-4830÷69
②
×
+
×
③168-7.5-2.5+32
④(
-
÷4)÷
⑤
+
×(
×
)
①108-4830÷69
②
| 1 |
| 4 |
| 5 |
| 13 |
| 3 |
| 4 |
| 5 |
| 13 |
③168-7.5-2.5+32
④(
| 1 |
| 4 |
| 1 |
| 5 |
| 3 |
| 10 |
⑤
| 7 |
| 11 |
| 4 |
| 11 |
| 11 |
| 12 |
| 2 |
| 3 |
①108-4830÷69,
=108-70,
=38;
②
×
+
×
,
=(
+
)×
,
=1×
,
=
;
③168-7.5-2.5+32,
=(168+32)-(7.5+2.5),
=200-10,
=190;
④(
-
÷4)÷
,
=(
-
)÷
,
=
÷
,
=
;
⑤
+
×(
×
),
=
+
×
×
,
=
+
×
,
=
+
,
=
.
=108-70,
=38;
②
| 1 |
| 4 |
| 5 |
| 13 |
| 3 |
| 4 |
| 5 |
| 13 |
=(
| 1 |
| 4 |
| 3 |
| 4 |
| 5 |
| 13 |
=1×
| 5 |
| 13 |
=
| 5 |
| 13 |
③168-7.5-2.5+32,
=(168+32)-(7.5+2.5),
=200-10,
=190;
④(
| 1 |
| 4 |
| 1 |
| 5 |
| 3 |
| 10 |
=(
| 1 |
| 4 |
| 1 |
| 20 |
| 3 |
| 10 |
=
| 1 |
| 5 |
| 3 |
| 10 |
=
| 2 |
| 3 |
⑤
| 7 |
| 11 |
| 4 |
| 11 |
| 11 |
| 12 |
| 2 |
| 3 |
=
| 7 |
| 11 |
| 4 |
| 11 |
| 11 |
| 12 |
| 2 |
| 3 |
=
| 7 |
| 11 |
| 1 |
| 3 |
| 2 |
| 3 |
=
| 7 |
| 11 |
| 2 |
| 9 |
=
| 85 |
| 99 |
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