-
Introduction
View the activity introduction for more information on the topic
-
Read aloud
Read the question aloud
-
Accessibility
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
This activity is about subtraction with decimals, exchanging if necessary.
Example
Work out the subtraction.
891.32 - 857.4 = |
|
Answer
Step 1. Line up the decimal points, inserting zeros if needed for 857.40
Step 2. Subtract, starting with the hundredths place, 2 - 0 = 2
Step 3. Move to the tenths place. We need to exchange, so 1 in the ones place becomes 0 and 3 in the tenths place becomes 13. Subtract 13 - 4 = 9
Step 4. Move to the ones place, to the left of the decimal point. We need to exchange, so 9 in the tens place becomes 8 and 0 in the ones place becomes 10. Subtract 10 - 7 = 3
Step 5. Subtract in the tens place 8 - 5 = 3 and then subtract in the hundreds place, 8 - 8 = 0
Answer: 33.92
The answer is 33.92
Are you ready to have a go yourself?
Question
/ 10Mr Shepherd
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation