题目内容
| 3.2+(9.2-3.8)÷
| 17.6-8.2-2.8 | ||||||||||||||
| (
| 97×
|
①
=0.125×0.6-0.125×0.5,
=0.125×(0.6-0.5),
=0.125×0.1,
=0.0125;
②3.2+(9.2-3.8)÷
,
=3.2+5.4×2,
=3.2+10.8,
=14;
③17.6-8.2-2.8,
=17.6-(8.2+2.8),
=17.6-11,
=6.6;
④
+
÷
+
,
=
+
×
+
,
=(
+
)+
,
=1+
,
=1
;
⑤(
+0.2)×
÷(3-0.5),
=(
+
)×
÷2.5,
=
×
×
,
=
;
⑥97×
,
=(98-1)×
,
=98×
-
,
=95-
,
=94
.
|
=0.125×(0.6-0.5),
=0.125×0.1,
=0.0125;
②3.2+(9.2-3.8)÷
| 1 |
| 2 |
=3.2+5.4×2,
=3.2+10.8,
=14;
③17.6-8.2-2.8,
=17.6-(8.2+2.8),
=17.6-11,
=6.6;
④
| 1 |
| 9 |
| 1 |
| 8 |
| 3 |
| 4 |
| 8 |
| 9 |
=
| 1 |
| 9 |
| 1 |
| 8 |
| 4 |
| 3 |
| 8 |
| 9 |
=(
| 1 |
| 9 |
| 8 |
| 9 |
| 1 |
| 6 |
=1+
| 1 |
| 6 |
=1
| 1 |
| 6 |
⑤(
| 1 |
| 3 |
| 7 |
| 8 |
=(
| 1 |
| 3 |
| 1 |
| 5 |
| 7 |
| 8 |
=
| 8 |
| 15 |
| 7 |
| 8 |
| 2 |
| 5 |
=
| 14 |
| 75 |
⑥97×
| 95 |
| 98 |
=(98-1)×
| 95 |
| 98 |
=98×
| 95 |
| 98 |
| 95 |
| 98 |
=95-
| 95 |
| 98 |
=94
| 3 |
| 98 |
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