Question 1:

Ms. Johnson found 12 1/2 ounces of glue and 5 3/8 ounces of glitter in a drawer. She used 2 3/4 ounces of glue for an art project. How much glue did Ms. Johnson have left?

Question 2:

A rectangular piece of paper has a length of 15 cm and a width of 8 cm. What is the perimeter of the paper?

Question 3:

A textbook weighs 900 grams and a laptop weighs 2,470 grams more than the textbook. What is the weight of the laptop?

Question 4:

Noah has male and female guinea pigs. The female guinea pig weighs 2 lbs 7 oz. The male guinea pig is 10 oz heavier than the female guinea pig. What is the weight of Noah's male guinea pig?

Question 5:

In a clothing store, 4,871 shirts were ordered. If 2,369 shirts were sold, how many shirts were left in stock? (round to the nearest thousand if your answer is greater than 1000)

Question 6:

A box can hold 3 packs of gum, and each pack contains 15 pieces of gum. How many pieces of gum can the box hold?

Question 7:

What is the weight of a 7-year-old boy if the average weight for his age is 52 lbs and he is 2 lbs heavier than average?

Question 8:

The recipe for banana bread needs 16 oz flour and 0.25 lbs sugar. The recipe for brownies needs 20 oz flour and 10 oz sugar. Which recipe needs more sugar?

Question 9:

A gallon of milk weighs 8 lbs. A quart of milk weighs 2 lbs. Which one is lighter?

Question 10:

If a notebook weighs 120 g, what is the weight of 6 notebooks?

---

Answer Keys

Question 1: 9 3/4 ounces of glue

Question 2: The perimeter of the paper is 46 cm.

Question 3: 3370 g

Question 4: 3 lbs 1 oz

Question 5: 2502

Question 6: 45 pieces

Question 7: The weight of the 7-year-old boy is 54 lbs.

Question 8: The recipe for brownies needs more sugar.

Question 9: The quart of milk is lighter.

Question 10: 720 g

---

Solutions

Question 1
To find how much glue Ms. Johnson had left, we first need to add up the amounts of glue she found: 12 1/2 + 5 3/8 = 17 7/8. Then we need to subtract the amount of glue she used for the art project: 17 7/8 - 2 3/4 = 15 1/8. Therefore, Ms. Johnson had 9 3/4 ounces of glue left.

Question 2
To find the perimeter of a rectangle, add up all the sides. Therefore, the perimeter of the paper is (2*15) + (2*8) = 46 cm.

Question 3
To find the weight of the laptop, we need to add 2,470 grams to the weight of the textbook. 900 + 2,470 = 3,370 grams. Therefore, the weight of the laptop is 3,370 grams.

Question 4
To find the weight of Noah's male guinea pig, we need to add 10 oz to the weight of the female guinea pig, which is 2 lbs 7 oz. 10 oz is equivalent to 0.625 lbs. So, we add 0.625 lbs to 2 lbs 7 oz. This gives us 3 lbs 1 oz, which is the weight of Noah's male guinea pig.

Question 5
To find the number of shirts left in stock, we need to subtract the number of shirts sold from the number of shirts ordered. So, 4,871 - 2,369 = 2,502. As instructed, we round this answer to the nearest thousand since it is greater than 1000. The answer is therefore 2,500, which is closest to 2,502.

Question 6
To find the total number of pieces of gum that a box can hold, we need to multiply the number of packs that can be held by the number of pieces of gum in each pack. Therefore, 3 packs x 15 pieces/pack = 45 pieces of gum can be held in the box.

Question 7
Add 2 lbs to the average weight: 52 + 2 = 54. Therefore, the weight of the 7-year-old boy is 54 lbs.

Question 8
Since both ingredients are measured in different units, we need to convert them to a common unit. We can convert the weight of flour from oz to lbs and then compare the sugar quantities in lbs. The recipe for banana bread needs 16/16 = 1 lb of flour and 0.25 lbs of sugar. The recipe for brownies needs 20/16 = 1.25 lbs of flour and 10/16 = 0.625 lbs of sugar. Therefore, the recipe for brownies needs more sugar. The answer is correct.

Question 9
We know that 1 gallon = 4 quarts. Therefore, a quart of milk will weigh less than a gallon of milk. We can double-check this by dividing the weight of a gallon of milk by 4, which gives us 8 / 4 = 2 lbs, the same weight as a quart of milk. So the quart of milk is lighter.

Question 10
To find the weight of 6 notebooks, we need to multiply the weight of one notebook (120 g) by the number of notebooks (6). 120 g x 6 = 720 g. Therefore, the weight of 6 notebooks is 720 g.