I AM OFFERING 15 POINTS FOR ANYONE WHO GETS THIS RIGHT!
Hannah is showing her work in simplifying (6.1 − 4.5) − 2.5 + 3.9. Identify any error in her work or reasoning.
Step 1: (6.1 − 4.5) − 2.5 + 3.9
Step 2: 6.1 + (− 4.5 − 2.5) + 3.9 (associative property)
Step 3: 6.1 − 7 + 3.9
Step 4: 6.1 + 3.9 − 7 (distributive property)
Step 5: 10 − 7 = 3
AShe wrote distributive instead of associative in Step 4.
BShe wrote associative instead of distributive in Step 2.
CShe wrote distributive instead of commutative in Step 4.
DShe wrote associative instead of commutative in Step 2.
Hannah is showing her work in simplifying (6.1 − 4.5) − 2.5 + 3.9. Identify any error in her work or reasoning.
Step 1: (6.1 − 4.5) − 2.5 + 3.9
Step 2: 6.1 + (− 4.5 − 2.5) + 3.9 (associative property)
Step 3: 6.1 − 7 + 3.9
Step 4: 6.1 + 3.9 − 7 (distributive property)
Step 5: 10 − 7 = 3
AShe wrote distributive instead of associative in Step 4.
BShe wrote associative instead of distributive in Step 2.
CShe wrote distributive instead of commutative in Step 4.
DShe wrote associative instead of commutative in Step 2.
