脱式计算(能简便的要简便). 0.233-(0.133-57)+27 4.62+9.9+5.38+0.1 4×0.6+0.6÷14 0
脱式计算(能简便的要简便).0.233-(0.133-57)+274.62+9.9+5.38+0.14×0.6+0.6÷140.38×7-1950+4×195036×(4...
脱式计算(能简便的要简便). 0.233-(0.133-57)+27 4.62+9.9+5.38+0.1 4×0.6+0.6÷14 0.38×7-1950+4×1950 36×(49-512)+15 (119+123)×23×19.
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(1)0.233-(0.133-
)+
,
=0.233-0.133+
+
,
=(0.233-0.133)+(
+
),
=0.1+1,
=1.1;
(2)4.62+9.9+5.38+0.1,
=(4.62+5.38)+(0.1+9.9),
=10+10,
=20;
(3)4×0.6+0.6÷
,
=4×0.6+0.6×4,
=0.6×(4+4),
=0.6×8,
=4.8;
(4)0.38×7-
+4×
,
=
×7-
+4×
,
=
×(7-4+1),
=
×10,
=
;
(5)36×(
-
)+15,
=36×
-36×
+15,
=16-15+15,
=16;
(6)(
+
)×23×19,
=
×23×19+
×23×19,
=23+19,
=42.
5 |
7 |
2 |
7 |
=0.233-0.133+
5 |
7 |
2 |
7 |
=(0.233-0.133)+(
5 |
7 |
2 |
7 |
=0.1+1,
=1.1;
(2)4.62+9.9+5.38+0.1,
=(4.62+5.38)+(0.1+9.9),
=10+10,
=20;
(3)4×0.6+0.6÷
1 |
4 |
=4×0.6+0.6×4,
=0.6×(4+4),
=0.6×8,
=4.8;
(4)0.38×7-
19 |
50 |
19 |
50 |
=
19 |
50 |
19 |
50 |
19 |
50 |
=
19 |
50 |
=
19 |
50 |
=
19 |
5 |
(5)36×(
4 |
9 |
5 |
12 |
=36×
4 |
9 |
5 |
12 |
=16-15+15,
=16;
(6)(
1 |
19 |
1 |
23 |
=
1 |
19 |
1 |
23 |
=23+19,
=42.
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