口算
0.6+0.4=1+2.25=1.6+0.8=1.6×5=
0.13×0.5=0.8×0.7=2-1.09=6.3÷2.1=
10.6×3=6.8×0.12=14.76÷0.12=3.6÷7.2=
13.2+11.8=12÷0.3=2.25×4=3.1+3.9=

解:
0.6+0.4=1

1+2.25=3.25

1.6+0.8=2.4

1.6×5=8
0.13×0.5=0.0650.8×0.7=0.562-1.09=0.916.3÷2.1=3
10.6×3=31.86.8×0.12=0.81614.76÷0.12=1233.6÷7.2=0.5
13.2+11.8=2512÷0.3=402.25×4=93.1+3.9=7

分析:根據(jù)小數(shù)加減乘除法的計算方法進行計算.
點評:本題綜合考查了學生小數(shù)計算的計算能力,要認真細心才能全對.
練習冊系列答案
相關(guān)習題

科目:小學數(shù)學 來源: 題型:

口算:
0.4×0.02=
3.2+6.8= 0.39÷1.3= 2.4×2.5=
1÷0.125= 1-0.25= 0.62÷0.1= 99×0.25=
1.2×0.4+0.4×1.3= 4×(1.5+0.25)=

查看答案和解析>>

科目:小學數(shù)學 來源: 題型:

口算
0.6+0.4= 1+2.25= 1.6+0.8= 1.6×5=
0.13×0.5= 0.8×0.7= 2-1.09= 6.3÷2.1=
10.6×3= 6.8×0.12= 14.76÷0.12= 3.6÷7.2=
13.2+11.8= 12÷0.3= 2.25×4= 3.1+3.9=

查看答案和解析>>

科目:小學數(shù)學 來源: 題型:

口算
(1)70×80=
5600
5600
        3.7×0.5=
1.85
1.85
     3.2×100=
320
320
      8.9-3.8=
5.1
5.1

(2)3.8+2.5+6.2=
12.5
12.5
    12-6.2-3.8=
2
2
   1.7+0.43+3.3=
5.43
5.43
    3.4-1.5-0.5=
1.4
1.4

(3)
8
9
+
1
9
--
2
7
=
5
7
5
7
     1.4×5=
7
7
    650-470=
180
180
    79+2.1=
81.1
81.1
    
(4)3.14×3=
9.42
9.42
      6.7+3.4=
10.1
10.1
   2.01×0.4=
0.804
0.804
   
6
13
+
7
13
=
1
1

(5)3.99+5.2=
9.19
9.19
   23+6.68=
29.68
29.68
   7×0.08=
0.56
0.56
    0.25×0.4=
0.1
0.1

(6)22×0.2=
4.4
4.4
   99.9+1=
100.9
100.9
   0.72÷6=
0.12
0.12
   3.9÷1.3=
3
3

(7)0.8×0.8=
0.64
0.64
   5.88+3.12=
9
9
   1.9+2.1=
4
4
   26÷2.6=
10
10
  
(8)340÷17=
20
20
   9.3÷0.3=
31
31
  13×4=
52
52
   3.6×5=
18
18

(9)1.5×4=
6
6
   20×16=
320
320
   28×3=
84
84
   3.2÷4=
0.8
0.8
 
(10)0.28×100=
28
28
   3200÷1000=
3.2
3.2
   0.5×100=
50
50
   4×0.125=
0.5
0.5

(11)340+120=
460
460
    
1
4
+
1
2
=
3
4
3
4
   2.5÷5=
0.5
0.5
   4.95×10=
49.5
49.5
   
(12)12-
1
2
-
1
2
=
11
11
   1÷0.25=
4
4
  5×0.13=
0.65
0.65
   12×0.05=
0.6
0.6

(13)3.08÷0.1=
30.8
30.8
   0.35×6=
2.1
2.1
   25÷0.5=
50
50
   1.5×3=
4.5
4.5

(14)4.3-2.7=
1.6
1.6
   8.1÷0.9=
9
9
   12÷1.2=
10
10
   0.48÷6=
0.08
0.08

(15)2.6÷26=
0.1
0.1
  0.72×5=
3.6
3.6
     4.8+3.2=
8
8
   5.7÷0.3=
19
19

查看答案和解析>>

科目:小學數(shù)學 來源: 題型:

口算
9.5×100=
1.25×8 0.25×0.9×4= 1.87×0=
3.5-1.5= 1.2×0.4= 3.6×0.5= 0.6×5=
0.24+0.6= 0.64×0.03= 7.8+2.2-1.5= 8×0.05=
0.125×8= 1.3×4= 0.4×0.6= 3×0.08=
0.35×2= 2.9×0.3= 10-0.9= 5.67×0=
0.8×0.01= 2.5×0.2= 2.4×0.3= 1.6×0.25=
0.17×0.3= 15×0.01= 10×0.07= 0.7×0.05=
0.2×0.05= 7.8×0.01= 0.2×0.26= 0.04×4=
12.4+2.1= 0.08×0.5= 0.14×4= 9×2.5+9×1.5=
1.8×0.5= 2.3×5= 0.3×3.6= 8×0.9+8×2.1=
2.5×4= 0.8+2.7×2= 0.05×7= 4.8+2.1+7.9=
3.4-1.8= 2.5+0.2×2= 0.02×0.1= 5.4-2.8=
0.3×0.2= 3.5×2×0.1= 0.3×0.3= 0×10.3×2.2=
0.12×0.7= 0.2×0.5= 0.92×0.4= 6.7-1.43=
1.2×4= 1.3×2= 1.2×0.3= 4.6+5.08=

查看答案和解析>>

同步練習冊答案