Question

)Ben is showing his work in simplifying (3.9 − 9.4) − 0.6 + 6.1. Identify any error in his work or reasoning.

Step 1: (3.9 − 9.4) − 0.6 + 6.1
Step 2: 3.9 + (− 9.4 − 0.6) + 6.1 (associative property)
Step 3: 3.9 − 10 + 6.1
Step 4: 3.9 + 6.1 − 10 (identity property)
Step 5: 10 − 10 = 0

He wrote identity instead of commutative in Step 4.
He wrote associative instead of commutative in Step 2.
He wrote identity instead of distributive in Step 4.
He wrote associative instead of distributive in Step 2.

Answer 1

@Vocaloid please help

Answer 2

hint: look at step 4 and tell me which property is being used

Answer 3

the distributive property? @Vocaloid

Answer 4

nope

look at step 3 and step 4 and tell me what changed between the two steps

Answer 5

commutative property

Answer 6

?? @Vocaloid

Answer 7

right, so our answer is...?

Answer 8

A?

Answer 9

?? @Vocaloid

Answer 10

yea its A i got it right :) thanks ! i have some more questions :)

Answer 11

use B - A, then calculate the distance

Answer 12

g2g

Answer 13

wait but thats the answer?

Answer 14

can we finish this problem please and then you can go ? :)