8.4÷0.7=
5
11
×33=
1
4
-
1
5
=
0.25×4= 3-
3
4
=
1
4
÷25%=
4.8×
5
8
=
3.37+6.63=
2
5
+
3
5
×2=
3
16
×
4
9
=
1-100%= 3.6×
4
9
=
0.5-
1
5
+0.5-
1
5
=
12.6÷3= 1.02-0.43=
3
7
=
10-1.34-3.66=
2
3
=
7+0÷7-7=
5
6
×13÷
5
6
=
分析:根據(jù)小數(shù)和分?jǐn)?shù)加減乘除的計(jì)算方法進(jìn)行計(jì)算即可.
解答:解:
8.4÷0.7=12,
5
11
×33=15,
1
4
-
1
5
=
1
20
,
0.25×4=1, 3-
3
4
=2
1
4
,
1
4
÷25%=1,
4.8×
5
8
=3,
3.37+6.63=10,
2
5
+
3
5
×2=
8
5
3
16
×
4
9
=
1
12
,
1-100%=0, 3.6×
4
9
=1.6,
0.5-
1
5
+0.5-
1
5
=
3
5
,
12.6÷3=4.2, 1.02-0.43=0.59,
3
7
=
7
3
,
10-1.34-3.66=5,
2
3
=12,
7+0÷7-7=0,
5
6
×13÷
5
6
=13.
點(diǎn)評:口算時(shí),注意運(yùn)算符號和數(shù)據(jù),然后再進(jìn)一步計(jì)算即可.
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫得數(shù)
16.5+4.5= 9-2.8= 7.4-0.6= 1.2+8.5=
3
10
+
4
10
=
6
7
-
2
7
=
1-
1
6
=
1-
5
11

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源: 題型:

神機(jī)妙算:(能簡算的要寫出簡算過程)
(1)( 
1
4
-
1
7
)×28+4
4
7
×7-3
4
7
×7
(2)
1
8
×78+0.5×1.25-730÷80+24×
51
43
+51×
19
43

(3)[22.5+(3
3
5
+1.8-1.21×
5
11
)]÷40%
(4)[47-(18.75-1÷
8
15
)×2]÷0.46
(5)(0.7×
2
3
-0.11×
5
6
)÷0.125+(
3
2
-
4
3
)÷(
5
6
×
3
4

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫得數(shù).
3
4
×1.6=
0.8÷0.01= 0.6÷
3
5
=
0.25×4= 0.1×0.1+0.1÷0.1=
8.4÷0.7=
5
11
×33=
1
4
-
1
5
=
3.37+6.63= 4-1÷3-8×
1
3
=
29.4÷0.7=
5
11
×33=
1
4
-
1
5
=
3.37+6.63= 4-1÷3-8×
1
3
=

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫出得數(shù).
487-198=
5
6
-
1
3
=
0.6×0.25=
5
11
×33=
4.8÷0.01=
2
5
+
3
5
×2=
7
8
×
4
21
=
48×(
1
4
-
1
6
)=
3
7
+
1
3
)×21=
3508÷69=
5
9
÷5=
42.7+
7
12
-42.7+
7
12
=

查看答案和解析>>

同步練習(xí)冊答案