题目内容
简便计算
5.02-1.37-2.63
144×(
-
+
)
×7+
÷
-
.
5.02-1.37-2.63
144×(
| 3 |
| 4 |
| 1 |
| 9 |
| 1 |
| 6 |
| 8 |
| 9 |
| 8 |
| 9 |
| 1 |
| 3 |
| 8 |
| 9 |
(1)5.02-1.37-2.63,
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
(2)144×(
-
+
),
=144×
-144×
+144×
,
=108-16+24,
=116;
(3)
×7+
÷
-
,
=
×7+
×3-
,
=
×(7+3-1),
=
×9,
=8.
=5.02-(1.37+2.63),
=5.02-4,
=1.02;
(2)144×(
| 3 |
| 4 |
| 1 |
| 9 |
| 1 |
| 6 |
=144×
| 3 |
| 4 |
| 1 |
| 9 |
| 1 |
| 6 |
=108-16+24,
=116;
(3)
| 8 |
| 9 |
| 8 |
| 9 |
| 1 |
| 3 |
| 8 |
| 9 |
=
| 8 |
| 9 |
| 8 |
| 9 |
| 8 |
| 9 |
=
| 8 |
| 9 |
=
| 8 |
| 9 |
=8.
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