pennyluvsu13
17.07.2020 •
Mathematics
2.1 IP-20
a Question Help
Owen solves a subtraction problem. First he uses the Associative Property
to group 5,709 and 3,709 together. Then he subtracts their difference from
18,724. Do you agree with Owen's reasoning? Explain.
Owen's Work
18,724 -5,709 - 3,709
18,724-(5,709 -3,709
18,724 -2,000
16,724
instead.
C. No. Owen cannot change the groupings of numbers to subtract. He should use counting on
instead
D. No. Owen cannot change the order of numbers to subtract. He should use compensation
instead
Solved
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Ответ:
x = 3 π /2 + 2 π n
Step-by-step explanation: