Lesson · Grade 4 · Mathematics
Division facts from multiplication facts
- Grade 4
- Mathematics
- 57 s
- British Columbia
- BC4-MA-17
To find 56 ÷ 8, the video shares 56 dots into 8 equal rows and turns the question into 8 × ? = 56, so the known fact 8 × 7 = 56 gives 7 in each row. It then reads the same fact the other way, 7 columns of 8, to get 56 ÷ 7 = 8, and ends with the recap "To divide, find the missing number in a times fact."
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In one sentence
The question this lesson answers
What is 56 divided by 8?
Picture 56 dots shared out into 8 equal rows.
Transcript
What the lesson says
What is 56 divided by 8?
Picture 56 dots shared out into 8 equal rows.
56 divided by 8 asks how many dots are in each row.
We do not need to count, because division undoes multiplication.
So ask: 8 times what number makes 56?
You know that 8 times 7 is 56.
So each row has 7 dots.
So 56 divided by 8 is 7.
The same times fact gives us a second division too.
This time, share the 56 dots into 7 equal columns.
Each column has 8 dots, so 56 divided by 7 is 8.
To divide, turn it into a times fact with a missing number.
Curriculum
Where this fits
- British Columbia, Grade 4
Mathematics, Number: multiplication and division facts to 100 (introductory computational strategies)BC4-MA-17
Previous: 3 × 7 = 7 × 3: Equal Groups, Skip Counting and Arrays
- British Columbia, Grade 5
Mathematics, Number: multiplication and division facts to 100 (emerging computational fluency)BC5-MA-21
- British Columbia, Grade 6
Mathematics, Number: multiplication and division facts to 100 (developing computational fluency)BC6-MA-05
Previous: Break a number apart to multiplyNext: Order of Operations: Brackets, Then Divide, Then Subtract
- British Columbia, Grade 7
Mathematics, Number: multiplication and division facts to 100BC7-MA-05
Previous: Break a number apart to multiplyNext: What Are Integers? Numbers Below Zero
This lesson is also listed in Grade 5, Grade 6 and Grade 7.
The outcomes and strands follow the British Columbia curriculum.
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