Show how you can use repeated subtraction to find how many groups of 7 are in 28. Then write the division sentence for the problem.
First do 28-7=21 and do it so on and on until you get to 0.
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To use repeated subtraction to find how many groups of 7 are in 28, you would start by subtracting 7 from 28 repeatedly until the result is less than 7.
Here's a step-by-step process:
1. Start with 28.
2. Subtract 7 from 28: 28 - 7 = 21.
3. Subtract 7 from 21: 21 - 7 = 14.
4. Subtract 7 from 14: 14 - 7 = 7.
5. Subtract 7 from 7: 7 - 7 = 0.
After four subtractions, the result is zero. This means that there are 4 groups of 7 in 28.
The division sentence for this problem would be: 28 ÷ 7 = 4.
how many groups of 7 are in 28
28 - 7 = 21 - 7 = etcetera
28/7 = ?