题目内容
| 直接写出得数. 777×9+111×37= | 5-
|
|
| ||||||||||||||||
| 72÷1.2+72÷1.8= | 9+3÷7÷6×14= |
| 8.4×13-3×8.4= | ||||||||||||||||
60×(1-
|
|
(1)777×9+111×37,
=111×63+111×37,
=111×(63+37),
=111×100,
=11100;
(2)5-
-
,
=5-(
+
),
=5-1,
=4;
(3)
+
-
+
,
=(
-
)+(
+
),
=
+1,
=1
;
(4)
÷
×5,
=
×5×5,
=3×5,
=15;
(5)72÷1.2+72÷1.8,
=60+40,
=100;
(6)9+3÷7÷6×14,
=9+
×
×14,
=9+
×14×
,
=9+6×
,
=9+1,
=10;
(7)
+
+
+
,
=(
+
)+(
+
),
=
+1,
=1
;
(8)8.4×13-3×8.4,
=8.4×(13-3),
=8.4×10,
=84;
(9)60×(1-
-
),
=60×1-60×
-60×
,
=60-20-30,
=40-30,
=10;
(10)
×996,
=
×(995+1),
=
×995+
×1,
=994+
,
=994
;
故答案为:11100,4,1
,15,100,10,1
,84,10,994
.
=111×63+111×37,
=111×(63+37),
=111×100,
=11100;
(2)5-
| 2 |
| 3 |
| 1 |
| 3 |
=5-(
| 2 |
| 3 |
| 1 |
| 3 |
=5-1,
=4;
(3)
| 7 |
| 9 |
| 4 |
| 11 |
| 4 |
| 9 |
| 7 |
| 11 |
=(
| 7 |
| 9 |
| 4 |
| 9 |
| 4 |
| 11 |
| 7 |
| 11 |
=
| 1 |
| 3 |
=1
| 1 |
| 3 |
(4)
| 3 |
| 5 |
| 1 |
| 5 |
=
| 3 |
| 5 |
=3×5,
=15;
(5)72÷1.2+72÷1.8,
=60+40,
=100;
(6)9+3÷7÷6×14,
=9+
| 3 |
| 7 |
| 1 |
| 6 |
=9+
| 3 |
| 7 |
| 1 |
| 6 |
=9+6×
| 1 |
| 6 |
=9+1,
=10;
(7)
| 2 |
| 7 |
| 2 |
| 5 |
| 3 |
| 7 |
| 3 |
| 5 |
=(
| 2 |
| 7 |
| 3 |
| 7 |
| 2 |
| 5 |
| 3 |
| 5 |
=
| 5 |
| 7 |
=1
| 5 |
| 7 |
(8)8.4×13-3×8.4,
=8.4×(13-3),
=8.4×10,
=84;
(9)60×(1-
| 1 |
| 3 |
| 1 |
| 2 |
=60×1-60×
| 1 |
| 3 |
| 1 |
| 2 |
=60-20-30,
=40-30,
=10;
(10)
| 994 |
| 995 |
=
| 994 |
| 995 |
=
| 994 |
| 995 |
| 994 |
| 995 |
=994+
| 994 |
| 995 |
=994
| 994 |
| 995 |
故答案为:11100,4,1
| 1 |
| 3 |
| 5 |
| 7 |
| 994 |
| 995 |
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