Decide which student accurately evaluated each expression: The students attempted to evaluate: Which student evaluated the expression accurately? 3 • 7 + 24 ÷ 3 Ava's solution Ava 21 + 24 ÷ 3 45 ÷ 3 15 Billy's solution 3 • 7 + 24 ÷ 3 21 + 24 ÷ 3 Billy 21 + 8 3 • 7 + 24 ÷ 3 29 3 • 7 + 24 ÷ 3 Cathy's solution 3 • 7 + 8 Cathy 3 • 15 45 Decide which student accurately evaluated each expression: The students attempted to evaluate: Which student evaluated the expression accurately? 3 (7 + 24) ÷ 3 Abbey's solution Abbey 3 (31) ÷ 3 93 ÷ 3 31 Bruno's solution 3 ( 7 + 24 )÷ 3 21 + 24 ÷ 3 Bruno 45 ÷ 3 3 (7 + 24) ÷ 3 15 3 ( 7 + 24 )÷ 3 Charlotte's solution 21 + 24 ÷ 3 Charlotte 21+8 29 Decide which student accurately evaluated each expression: The students attempted to evaluate: Which student evaluated the expression accurately? 50- 45 ÷ 5•3 + 2 Allyson's solution 5 ÷ 5•3 + 2 Allyson 1 • 3 + 2 3+2 5 50- 45 ÷ 5•3 + 2 Brent's solution 50- 45 ÷ 15 + 2 Brent 50 - 3 + 2 50- 45 ÷ 5•3 + 2 47 + 2 49 50- 45 ÷ 5•3 + 2 Cynthia's solution 50- 9•3 + 2 Cynthia 50 - 27 + 2 23 + 2 25 Decide which student accurately evaluated each expression: The students attempted to evaluate: Which student evaluated the expression accurately? Anna's solution 40 - 20 ÷ 2 Anna 40 - 10 2 + 8 2 + 8 2 + 8 30 30 10 3 Barbara's solution Barbara 40 - 20 ÷ 2 40 - 10 2 + 8 2 + 8 15 + 8 2 + 8 30 23 40 - 20 ÷ 2 2 + 8 Colby's solution 40 - 20 ÷ 2 Colby 40 - 10 2 + 8 40-10 2 + 8 40 - 1 10 39 |