伤感签名男生-艾滋病防治知识
四年级数学简便计算题及答案
1
)
125
×
(
17
×
8
)
×
4
2
)
375
×
480 + 6250
×
48
3
)
25
×
16
×
125
4
)
13
×
99
5
)
75000
÷
125
÷
15
6
)
7900
÷
4
÷
25
7
)
150
×
40
÷
50
9
)
210
÷
42
×
6
11
)
67
×
21
+
18
×
21 + 85
×
79
13
)
222222
×
999999
15
)
56000
÷
(
14000
÷
16
)
17
)
34
×
3535
-
35
×
3434
19
)
345345
÷
15015
21
)
75
×
45 + 17
×
25
23
)
(
48
×
75
×
81
)÷(
24
×
25
×
27
)
8
)
5600
÷(
25
×
7
)
10
)
39600
÷
25
12
)
321
×
81 + 321
×
19
14
)
333333
×
333333
16
)
654321
×
909090 +654321
×
90909
18
)
27000
÷
125
20
)
347 + 358 + 352 + 349
22
)
599996 + 49997 + 3998 + 407 + 89
四年级数学简便计算题及答案
:
1
)
125
×
(
17
×
8
)
×
4
2
)
375
×
480 + 6250
×
48
= 125
×
8
×
4
×
17
=480
×
(375
+
625)
=1000×
68
=480000
=68000
3
)
25
×
16
×
125
4
)
13
×
99
=25
×
2
×
8
×
125
=13
×
(100
-
1)
=50000
=1300
-
13
5
)
75000
÷
125
÷
15
=75×
1000÷
125÷
15
=75÷
15×
1000÷
125
=5×
8
=40
7
)
150
×
40
÷
50
=150÷
50×
40
=3×
40
=120
9
)
210
÷
42
×
6
=210÷
7÷
6×
6
=30
11
)
67
×
21
+
18
×
21 + 85
×
79
=21×
(67+18)+85×
79
=21×
85+85×
79
=85×
(21+79)
=8500
13
)
222222
×
999999
=222222
×
(1000000
-
1)
=222222000000
-
222222
=222221777778
15
)
56000
÷
(
14000
÷
16
)
=56000÷
14000×
16
=4
×
16
=64
=1287
6
)
7900
÷
4
÷
25
=7900÷
(4×
25)
=79
8
)
5600
÷(
25
×
7
)
=56×
100÷
25÷
7
=56÷
7×
100÷
25
=32
10
)
39600
÷
25
=396×
100÷
25
=396×
4
=1584
12
)
321
×
81 + 321
×
19
=321×
(81+19)
=32100
14
)
333333
×
333333
=111111
×
999999
=111111
×
(1000000
-
1)
=0
-
111111
=9
16
)
654321
×
909090
+654321
×
90909
=654321×
999999
=654321
×
(100000
-
1)
=654321000000
-
654321
=654320345679
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
伤感签名男生-艾滋病防治知识
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