Question

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.

Answer 1

Can someone help me plz

Answer 2

These are to the chocies.....

Answer 3

Step 1: He wrote −7.3 incorrectly as + (−7.3).

Step 2: He identified changing the order of the numbers as the commutative property, which is incorrect.

Step 3: He identified changing the grouping of the numbers as the associative property, which is incorrect.

Step 5: He simplified incorrectly.

Answer 4

this is the chart

Answer 5

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning.

Step Work Reasoning
−4.5 + 4.2 + 5.6 − 7.3 Original problem
1 −4.5 + 4.2 + 5.6 + (−7.3) Additive inverse
2 −4.5 + (−7.3) + 4.2 + 5.6 Commutative property
3 [−4.5 + (−7.3)] + (4.2 + 5.6) Associative property
4 −11.8 + 9.8 Simplify
5 −21.6 Simplify
(5 points)

Group of answer choices

Step 1: He wrote −7.3 incorrectly as + (−7.3).

Step 2: He identified changing the order of the numbers as the commutative property, which is incorrect.

Step 3: He identified changing the grouping of the numbers as the associative property, which is incorrect.

Step 5: He simplified incorrectly.

Answer 6

i think 5 because you can simplify it even more than that and you get 5.3−7.3.

Answer 7

thanks

Answer 8

how was your day

Answer 9

good

Answer 10

how old are you

Answer 11

i am not telling you

Answer 12

ook

Answer 13

but thx it was right