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12.2 + –4.3 + [18.6 + (–18.6)] additive inverse✔ associative propertycommutative propertydistributive property
12.2 + –4.3 + (0)✔ additive inverseassociative propertycommutative propertydistributive property
12.2 + –4.3 + 18.6 + (–18.6) additive inverseassociative property✔ commutative propertydistributive property
On Friday, Elsbeth deposited her pay check for $872.56. What was the account’s final total?
A squirrel climbs 15 feet up a tree. He then runs 8.26 feet down the tree. How much further does the squirrel need to go before reaching the ground?
The decimal -2.97 is the solution to which subtraction problem?
Round to the nearest whole dollar to estimate how much change Shawn will receive.$12✔ $13$14$23
Estimate the sum to the nearest tenth:(-2.678) + 4.5 + (-0.68)-1.1✔ 1.11.92.1
Between which two places is the difference in finishing times the shortest?✔ 2 and 33 and 44 and 55 and 6
Sample Response: Larry did not round correctly. He used front-end estimation, but he did not round up when appropriate. His estimate will be lower than the amount of money he needs. Which of the following did you include in your explanation?Larry used front-end estimation incorrectly.Larry did not round correctly.Rounding would be a better estimation strategy.Larry underestimated the total cost of the items.Larry does not have enough money to purchase the five items.
What is the actual amount of change Shawn will receive?$12.06✔ $12.94$13.06$13.94
What is the actual sum?-3.354-2.502✔ 1.1426.498
What is the difference in those times?✔ 0.07 seconds0.23 seconds1.07 seconds7 seconds
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