Addition and Subtraction of Decimal Fractions: Complete with 0

Circle the correct answer to the following exercise:

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 112.3 as follows:

$111.25\\+112.30\\$

Now let's solve the exercise in order:

We'll combine the hundredths after the decimal point:

$5+0=5$

We'll combine the tenths after the decimal point:

$2+3=5$

Finally, we'll combine the whole numbers before the decimal point accordingly:

$1+2=3$

$1+1=2$

$1+1=2$

And we get:

$111.25\\+112.30\\223.55$

223.55

Circle the correct answer to the following exercise:

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 6.4 as follows:

$1.02\\+6.40\\$

Now let's solve the exercise in order:

We'll add the hundredths after the decimal point:

$2+0=2$

We'll add the tenths after the decimal point:

$0+4=4$

Finally, we'll add the whole numbers before the decimal point:

$1+6=7$

And we get:

$1.02\\+6.40\\7.42$

7.42

Circle the correct answer to the following exercise:

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 5.4 as follows:

$5.40\\+3.22\\$

Now let's solve the exercise in order:

We'll add the hundredths after the decimal point:

$0+2=2$

We'll add the tenths after the decimal point:

$4+2=6$

Finally, we'll add the whole numbers before the decimal point:

$5+3=8$

And we get:

$5.40\\+3.22\\8.62$

8.62

Circle the correct answer to the following exercise:

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 30.1 as follows:

$33.23\\-30.10\\$

Now let's solve the exercise in order:

We'll subtract the hundredths after the decimal point:

$3-0=3$

We'll subtract the tenths after the decimal point:

$2-1=1$

Finally, we'll subtract the whole numbers before the decimal point accordingly:

$3-0=3$

$3-3=0$

And we get:

$33.23\\-30.10\\03.13$

3.13

Circle the correct answer to the following exercise:

230.422

Circle the correct answer to the following exercise:

5.3132

Circle the correct answer to the following exercise:

9.962

Circle the correct answer to the following exercise:

0.113

Circle the correct answer to the following exercise:

113.451

Circle the correct answer to the following exercise:

10.78

Circle the correct answer to the following exercise:

25.779

Circle the correct answer to the following exercise:

3.922