Trimester 2 th Grade Name: Answer Key..NBT.7 Fiona hiked along a trail in Glacier National Park that is 7.2 miles long. It took her hours to hike. What was her average speed per hour? 7.2 / =.3 (miles per hour) 2..NF.2 Riley has 0 cups of sugar. She made one dessert that used cups and another that used 2 2 cups. How much sugar did Riley use in all? 3 A. 3 2 cups B. cups C. 2 Show your work here: Students may convert to find an equivalent fraction to subtract, use a visual model or show another way to solve. D. cups 3..NF. It took Kenny 3 of an hour to ride his bike from school to the park. Then it took Kenny 2 hours to ride from the park to his home. For what amount of time did 3 Kenny ride his bike in all? A. 3 2 hours B. 2 3 hours C. 2 2 3 hours D 2 2 hours
..NF.2 Daniel wrote this equation in her notebook. 9 + 3 = 2 Without calculating the answer, how can you tell Daniel s sum is incorrect? Answers will vary: Students may convert a decimal to a percent to show that 0% + 0% = 70% or that three-fifths is greater than one half...nf. Marlon had a piece of string that was inches long. He cut off 0 use for a project. How long is Marlon s string now? A. 3 inches of the string to B. 3 3 inches C. inches D. inches..nf. Taylor saw an American alligator at a zoo that measured 2 2 feet long. The record length of an American alligator is 9 feet long. How much longer is the record alligator than the alligator Taylor saw? ¼ feet longer 7..NF. Shelley wove three rugs with Navajo designs. She wrote this expression to show the total length in feet of all three rugs. (8 7 + 7 8 ) + Which shows another way to write the expression using the Associative Property of Addition? A. 8 7 + ( 7 8 + ) C. (8 7 + 7 8 ) + (8 7 + ) B. 8 7 + ( 7 8 + ) D. (8 + + ) + ( 7 + 7 8 + ) 2
8..NBT.7 Samuel bought salt water taffy that cost $0. per pound. He paid $.8 for the taffy. How many pounds did he buy? 9 pounds of taffy.8 / $. = 9..NF.2 &.NF. Tom drew a model to subtract 3 and 3. Shade each to solve. Which of the following statements is true about the difference of 3 and 3? A. The difference is greater than. B. The difference is greater than 3. C. The difference is less than 2. D. The difference is less than. 0..NF.2 &.NF. Lou and Fran have of a pie left. They save of the pie to give to their grandmother. 9 9 How much of the pie do they have left to eat now? A. B. 2 9 C. 9 D. 9 3
..NF.3 Mark invited friends to his birthday party. He will give each friend 2 balloons. He will buy balloons in packages of. What is the minimum number of packages of balloons Mark must buy to have enough balloons to give to each of his friends? A. 3 B. C. 8 D. 0 2..NF.3 Thad has 8 9 of a bottle of dish soap to use to wash the dishes. If he uses of the remaining soap in the bottle in one evening, which expression shows how much of the bottle he used? A. (8 X 8 ) ( X ) B. (8 X ) (9 X ) C. (8 X ) (9 X ) D. (8 X 9) ( X ) 3..NF.3 &.NF. Complete the fraction model below to find the product of X 3? 2 2 or 2..NF. Jessica s birdhouse has a square opening for the birds to enter. The dimensions are shown below. What is the area of the opening? 9 inches square 7 8 in.
..NF. and.nf. Mrs. Bennett is planting two flower beds. The first flower bed is meters long and meters wide. The second flower bed is meters long and meters wide. How do the areas of these two flower beds compare? Is the value of the area larger or smaller than square meters? Include a model or equation to prove your answer. Six fifths is equal to one and one fifth so because this is greater than one, six fifths is larger than five sixth. Students should label each box on their assessment accordingly. The rectangle on the left is larger than the rectangle on the right...nf. Lisa says the product of 2 X 2 will be larger than 2 Is Lisa correct? Explain how you know. because you are multiplying. If you multiply by a fraction you are scaling down. It would be two-fifths of 2 and one-fifth so the product is less than the original whole. 7..NF.7 Audrey had of the birthday cake her grandmother made left over from her party. She had two friends over and they divided the cake equally. How much of the total cake did each of the girls eat? Each girl ate 2
8..NF.7 Lynn copied this expression and model into her math notebook. What is the quotient? = A. B. C. 72 3 2 D. 9..NF.7 Mr. and Mrs. Bridges ate 3 of a pizza. They want to split the remaining part equally between their two sons. How much of the pizza will each son receive? A. 2 pizzas B. 3 of a pizza C. of a pizza D. of a pizza 8 20..NF.7 How much rice will each person get if 3 people share ½ lb. of rice equally? Each person will eat one-sixth of the pound of rice
Performance Task: Training for a Marathon Robbie is training for a marathon. As part of his training, Robbie recorded how many miles he ran each day for five days. The table shows how many mils he ran each day. A. How many miles did Robbie run in all? Explain. miles: Miles Run Day Miles 2 2 2 3 9 2 3 3 2 I converted all the fractions to twelfths. Then I added the whole 3 2 3 numbers and the fractions and simplified the sum. B. Robbie said that on two days he ran six miles in all. Which two days could he be talking about? Explain how you know. Accept days and or days 2 and : Explain Day = 2 2, day = 3 2. The sum is. 3 C. Robbie wants to run two more days to reach his goal of 20 miles. How many more miles does he have to run? If Robbie runs more than mile each day, what is a possible combination of miles he could run in two days to reach his goal of running a total of 20 miles in seven days? He needs to run miles more to reach his goal. Possible combination: 3 and miles Standards Assessed:.NF. and.nf.2 Use a strategy to add and subtract fractions. Solve words problems involving addition and subtraction of fractions. **Proficiency is determined by correctly completing Parts A, B and C above. 7