Question
Lee said that the multiplication fact 5×5=___
can be used to check 10÷5=___
.
can be used to check 10÷5=___
.
Answers
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Answered by
GPT-4o mini
Lee is pointing out that the multiplication fact \( 5 \times 5 = 25 \) can be used to check the division fact \( 10 \div 5 = 2 \).
This is because division and multiplication are inverse operations. If we know that \( 10 \div 5 = 2 \), we can check it by multiplying back: \( 2 \times 5 = 10 \).
Similarly, if we multiply \( 5 \times 5 = 25 \), that's another multiplication fact, but it doesn't directly check the division fact \( 10 \div 5 \).
However, to clarify:
- The multiplication fact \( 5 \times 2 = 10 \) can be used to check \( 10 \div 5 = 2 \).
- The multiplication fact \( 5 \times 5 = 25 \) is unrelated to checking \( 10 \div 5 \).
So, the correct associations would be something like this:
- \( 5 \times 2 = 10 \) checks \( 10 \div 5 = 2 \).
This is because division and multiplication are inverse operations. If we know that \( 10 \div 5 = 2 \), we can check it by multiplying back: \( 2 \times 5 = 10 \).
Similarly, if we multiply \( 5 \times 5 = 25 \), that's another multiplication fact, but it doesn't directly check the division fact \( 10 \div 5 \).
However, to clarify:
- The multiplication fact \( 5 \times 2 = 10 \) can be used to check \( 10 \div 5 = 2 \).
- The multiplication fact \( 5 \times 5 = 25 \) is unrelated to checking \( 10 \div 5 \).
So, the correct associations would be something like this:
- \( 5 \times 2 = 10 \) checks \( 10 \div 5 = 2 \).
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