题目内容
脱式计算
(1)(28×
+12×175%)÷
(2)16×18+16×80+98×84
(3)1
-
+
-
+
-
+
-
(4)
÷(
-
)×(
-
)
(5)
×(4.85÷
-3.6+6.15×3
)
(6)10÷[
-(
÷
+
)].
(1)(28×
| 7 |
| 4 |
| 21 |
| 8 |
(2)16×18+16×80+98×84
(3)1
| 1 |
| 3 |
| 7 |
| 12 |
| 9 |
| 20 |
| 11 |
| 30 |
| 13 |
| 42 |
| 15 |
| 56 |
| 17 |
| 72 |
| 19 |
| 90 |
(4)
| 4 |
| 9 |
| 5 |
| 6 |
| 1 |
| 2 |
| 7 |
| 8 |
| 1 |
| 2 |
(5)
| 1 |
| 4 |
| 5 |
| 18 |
| 3 |
| 5 |
(6)10÷[
| 8 |
| 3 |
| 5 |
| 13 |
| 5 |
| 26 |
| 2 |
| 5 |
(1)(28×
+12×175%)÷
=(49+21)×
,
=70×
,
=
.
(2)16×18+16×80+98×84
=288+1280+8232,
=9800;
(3)1
-
+
-
+
-
+
-
=
-7×(
-
)+9×(
-
)-11×(
-
)+13×(
-
)-15×(
-
)+17×(
-
)-19×(
-
)
=
-
+
+
-
-
+
+
-
-
+
+
-
-
+
;
=(
+
+
+
+
+
+
+
)-(
+
+
+
+
+
+
),
=(
+4+4+4+
)-(
+4+4+4),
=
+
-
,
=
;
(4)
÷(
-
)×(
-
)
=
÷
×
,
=
;
(5)
×(4.85÷
-3.6+6.15×3
)
=
×(
×
-
+
×
),
=
×[(
+
-1)×
],
=
×[10×
],
=
×36,
=9.
(6)10÷[
-(
÷
+
)]
=10÷[
-
],
=10×
,
=
.
| 7 |
| 4 |
| 21 |
| 8 |
=(49+21)×
| 8 |
| 21 |
=70×
| 8 |
| 21 |
=
| 80 |
| 3 |
(2)16×18+16×80+98×84
=288+1280+8232,
=9800;
(3)1
| 1 |
| 3 |
| 7 |
| 12 |
| 9 |
| 20 |
| 11 |
| 30 |
| 13 |
| 42 |
| 15 |
| 56 |
| 17 |
| 72 |
| 19 |
| 90 |
=
| 4 |
| 3 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 6 |
| 1 |
| 6 |
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 9 |
| 1 |
| 9 |
| 1 |
| 10 |
=
| 4 |
| 3 |
| 7 |
| 3 |
| 7 |
| 4 |
| 9 |
| 4 |
| 9 |
| 5 |
| 11 |
| 5 |
| 11 |
| 6 |
| 13 |
| 6 |
| 13 |
| 7 |
| 15 |
| 7 |
| 15 |
| 8 |
| 17 |
| 8 |
| 17 |
| 9 |
| 19 |
| 9 |
| 19 |
| 10 |
=(
| 4 |
| 3 |
| 7 |
| 4 |
| 9 |
| 4 |
| 11 |
| 6 |
| 13 |
| 6 |
| 15 |
| 8 |
| 17 |
| 8 |
| 19 |
| 10 |
| 7 |
| 3 |
| 9 |
| 5 |
| 11 |
| 5 |
| 13 |
| 7 |
| 15 |
| 7 |
| 17 |
| 9 |
| 19 |
| 9 |
=(
| 4 |
| 3 |
| 19 |
| 10 |
| 7 |
| 3 |
=
| 4 |
| 3 |
| 19 |
| 10 |
| 7 |
| 3 |
=
| 9 |
| 10 |
(4)
| 4 |
| 9 |
| 5 |
| 6 |
| 1 |
| 2 |
| 7 |
| 8 |
| 1 |
| 2 |
=
| 4 |
| 9 |
| 1 |
| 3 |
| 3 |
| 8 |
=
| 1 |
| 2 |
(5)
| 1 |
| 4 |
| 5 |
| 18 |
| 3 |
| 5 |
=
| 1 |
| 4 |
| 97 |
| 20 |
| 18 |
| 5 |
| 18 |
| 5 |
| 123 |
| 20 |
| 18 |
| 5 |
=
| 1 |
| 4 |
| 97 |
| 20 |
| 123 |
| 20 |
| 18 |
| 5 |
=
| 1 |
| 4 |
| 18 |
| 5 |
=
| 1 |
| 4 |
=9.
(6)10÷[
| 8 |
| 3 |
| 5 |
| 13 |
| 5 |
| 26 |
| 2 |
| 5 |
=10÷[
| 8 |
| 3 |
| 12 |
| 5 |
=10×
| 15 |
| 4 |
=
| 75 |
| 2 |
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