Addition and Subtraction of Decimal Fractions: Complete with 0

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:

$5.40\\+3.22\\8.62$

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:

$1.02\\+6.40\\7.42$

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 6.55 as follows:

$6.550\\+3.412\\$

Now let's solve the exercise in order:

Let's add the thousandths after the decimal point:

$0+2=2$

Let's add the hundredths after the decimal point:

$5+1=6$

Let's add the tenths after the decimal point:

$5+4=9$

Finally, let's add the whole numbers before the decimal point:

$6+3=9$

And we get:

$6.550\\+3.412\\9.962$

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:

$111.25\\+112.30\\223.55$

To avoid confusion in solving the exercise, we'll first add the digit 0 to the number 3.212 in the following way:

$2.1012\\+3.2120\\$

Now let's solve the exercise in order:

Let's multiply the ten-thousandths after the decimal point:

$2+0=2$

Let's multiply the thousandths after the decimal point:

$1+2=3$

Let's multiply the hundredths after the decimal point:

$0+1=1$

Let's multiply the tenths after the decimal point:

$1+2=3$

Finally, let's multiply the whole numbers before the decimal point:

$2+3=5$

And we get:

$2.1012\\+3.2120\\5.3132$

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 115.32 as follows:

$115.320\\+115.102\\$

Now let's solve the exercise in order:

Let's multiply the thousandths after the decimal point:

$0+2=2$

Let's multiply the hundredths after the decimal point:

$2+0=2$

Let's multiply the tenths after the decimal point:

$3+1=4$

Finally, let's multiply the whole numbers before the decimal point accordingly:

$5+5=10$

We'll add the tens to the tens digit and get:

$1+1+1=3$$1+1=2$

And we get:

$115.320\\+115.102\\230.422$

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:

$33.23\\-30.10\\03.13$

To avoid confusion in solving the exercise, we'll first add the digit 0 to the number 1.01 as follows:

$1.123\\-1.010\\$

Now let's solve the exercise in order:

Let's subtract the thousands after the decimal point:

$3-0=3$

Let's subtract the hundreds after the decimal point:

$2-1=1$

Let's subtract the tenths after the decimal point:

$1-0=1$

Finally, let's subtract the whole numbers before the decimal point:

$1-1=0$

And we get:

$1.123\\-1.010\\0.113$

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 11.30 as follows:

$15.222\\-11.300\\$

Now let's solve the exercise in order:

Let's subtract the thousands after the decimal point:

$2-0=2$

Let's subtract the hundreds after the decimal point:

$2-0=2$

Let's subtract the tenths after the decimal point:

$2-3=$

Since we cannot subtract, we will borrow ten from the tens digit in the whole number before the decimal point and get:

$12-3=9$

Finally, let's subtract the whole numbers before the decimal point accordingly.

Remember that we borrowed ten from the tens digit, therefore:

$5-1-1=3$

$1-1=0$

And we get:

$15.222\\-11.300\\03.922$

To avoid confusion in solving the exercise, we will first add the digit 0 to the number 113.1 in the following way:

$113.10\\-102.32\\$

Now let's solve the exercise in order:

Let's subtract the hundreds after the decimal point:

$0-2=$

Since we cannot subtract, we'll borrow ten from the tenths digit after the decimal point and get:

$10-2=8$

Let's subtract the tenths after the decimal point, remembering that we borrowed ten, so we get:

$1-1-3=0-3$

Since we cannot subtract, we'll borrow ten from the hundreds digit of the whole number and get:

$10-3=7$

Finally, let's subtract the whole numbers before the decimal point accordingly.

Remember that we borrowed ten from the hundreds digit, so:

$3-1-2=0$

$1-0=1$

$1-1=0$

And we get:

$113.10\\-102.32\\010.78$