소수의 덧셈과 뺄셈 단원 종합

N.1Fill in each blank.

1. 1
   $0.01$ less than $1.209$ is 
2. 2
   $0.01$ less than $1.735$ is 
3. 3
   $0.01$ less than $18.2$ is 
4. 4
   $0.1$ more than $0.9$ is 

N.2Add. Line up the decimal points.

1. 5
   32.6

   +50.1
2. 6
   37.3

   +8.6
3. 7
   7.2

   +47.3
4. 8
   3.2

   +5.2

N.3Subtract. Line up the decimal points.

1. 9
   50.22

   −9.37
2. 10
   31.1

   −30.1
3. 11
   46.2

   −18.6
4. 12
   31.2

   −25.4

N.4Add or subtract.

1. 13
   44.57

   +24.58
2. 14
   38.25

   +35.63
3. 15
   31.78

   −17.04
4. 16
   34.69

   −31.11

N.10.1 or 0.01 More or Less

1. 11.199
2. 21.725
3. 318.19
4. 41

N.2Add Decimals

1. 582.7
2. 645.9
3. 754.5
4. 88.4

N.3Subtract Decimals

1. 940.85
2. 101
3. 1127.6
4. 125.8

N.4Adding & Subtracting Decimals

1. 1369.15
2. 1473.88
3. 1514.74
4. 163.58