Question

Eva is showing her work in simplifying (7.3 – 7.2) – 3.8 + 3.7. In which step did Eva make an error?

Step 1: (7.3 – 7.2) – 3.8 + 3.7

Step 2: 7.3 + (–7.2 – 3.8) + 3.7 (commutative property)

Step 3: 7.3 – 11 + 3.7

Step 4: 7.3 + 3.7 – 11 (commutative property)

Step 5: 11 – 11 = 0
Step 2; she wrote commutative instead of distributive Step 4; she wrote commutative instead of distributive Step 4; she wrote commutative instead of associative Step 2; she wrote commutative instead of associative

Answer 1

@triciaal ?

Answer 2

@misty1212 @Jadeishere

Answer 3

She wrote commutative. Subtraction cannot be commutative. It should be the Associative :P

Answer 4

Step 2

Answer 5

ok so the last option right?

Answer 6

Yes :)

Answer 7

ok thanks sooo muchhh

Answer 8

No problem!!!