8. Show how to calculate 4-1 in two different ways. In each case, express your answer...

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8. Show how to calculate 4-1 in two different ways. In each case, express your answer as a mixed number. Explain why both methods are legitimate. 20. a. Write and solve a Put Together/Take Apart problem for +?= } b. Write and solve a Put Together/Take Apart problem for += ? 8. Show how to calculate 4-1 in two different ways. In each case, express your answer as a mixed number. Explain why both methods are legitimate. 20. a. Write and solve a Put Together/Take Apart problem for +?= } b. Write and solve a Put Together/Take Apart problem for += ? 8. Show how to calculate 4-1 in two different ways. In each case, express your answer as a mixed number. Explain why both methods are legitimate. 20. a. Write and solve a Put Together/Take Apart problem for +?= } b. Write and solve a Put Together/Take Apart problem for += ? 8. Show how to calculate 4-1 in two different ways. In each case, express your answer as a mixed number. Explain why both methods are legitimate. 20. a. Write and solve a Put Together/Take Apart problem for +?= } b. Write and solve a Put Together/Take Apart problem for += ?