In this activity, we will round numbers to the nearest ten to estimate the answer to a multiplication.
Example
Estimate the answer by rounding the numbers to the nearest 10 before multiplying.
Answer
Remember, to work out 80 x 40, we work out 8 x 4 x 10 x 10 = 32 x 100 = 3,200
Let's try some questions.
View the activity introduction for more information on the topic
Read the question aloud
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
Question
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