Answer: c) 213

Selena started with 204 stamps, then she bought 47 more stamps. So, to find out how many stamps she has now, you add the initial number of stamps to the ones she bought:

204 (initial stamps) + 47 (bought stamps) = 251 stamps

Now, if Selena gave 38 stamps to her brother, you subtract that from the total:

251 (total stamps) - 38 (given to brother) = 213 stamps

This means Selena has 213 stamps now after buying some and giving some to her brother.

Answer : c) 640

To round the number 637 to the nearest ten, you look at the digit in the ones place, which is 7.

If the one digit is 5 or greater, you round up. If it's less than 5, you round down.

In this case, 7 is more than 5, so you round up to the nearest ten. The tens digit stays the same (6), and the ones digit becomes 0.

Therefore, the rounded number is 640.

So, the correct answer is: C. 640

Answer C) 20 ÷ 4

The correct expression that represents the number of toy cars in each group is:

C. 20 ÷ 4

Explanation: Alex sorted 20 toy cars into 4 groups, and to find the number of toy cars in each group, you divide the total number of toy cars (20) by the number of groups (4). So, 20 ÷ 4 gives you the number of toy cars in each group, which is 5.

Therefore, the answer is C. 20 ÷ 4

Answer A) 6 × ? = 42

The teacher wants to place the class into six equal groups. The total number of dancers (42) needs to be divided equally into these six groups. The multiplication sentence 6 × ? = 42 represents this situation, where we are trying to find the number of dancers in each group.

Therefore, the answer is A. 6 × ? = 42

Answer C) 60

To find the difference between the total amount of time Noel read and the total amount of time Tyra read, we can use subtraction.

Noel's total reading time = 90 minutes/day × 6 days
Tyra's total reading time = 60 minutes/day × 8 days

Now, let's calculate:

Noel's total reading time = 90 × 6 = 540 minutes
Tyra's total reading time = 60 × 8 = 480 minutes

The difference is $=60$ minutes.

Therefore, the correct answer is: C. 60

Answer A) He bought 6 bags that weigh 4 pounds each.

The sentence that could describe the potting soil Mr. Bachu bought is:

A. He bought 6 bags that weigh 4 pounds each.

The total weight of the potting soil is 24 pounds. If he bought 6 bags and each bag weighs 4 pounds, then $6\text{bags }\times 4\text{pounds/bag }=24$ pounds, which matches the total weight Mr. Bachu bought.

Therefore, the correct answer is A. He bought 6 bags that weigh 4 pounds each.

Answer D) 16

To find out how many liters of water Mrs. Allen used in all, you can multiply the number of pitchers by the amount of water used for each pitcher.

The number of pitchers is 8, and the amount of water for each pitcher is 2 liters.

So, $8\text{pitchers }\times 2\text{liters/pitcher }=16$ liters.

Therefore, the correct answer is: D. 16

Mrs. Allen used a total of 16 liters of water to make the fruit punch for the party.

Answer B) 7

To find out how many packages Zoe bought, we can use the equation 4 × ? = 28. This equation represents the number of pencils (28) divided by the number of pencils in each package (4).

Now, let's figure out the total number of packages:

4 × ? = 28

To solve for the missing number (?), we divide both sides of the equation by 4:

4 × ?/4 = 28​/4

This simplifies to:

? = 7

Therefore, Zoe bought 7 packages.

So, the correct answer is: B. 7

Answer B) 5

To find the total number of days Rick can give the muffins to his three children, we can use the equation 15 ÷ ? = 3. This equation represents the total number of muffins (15) divided by the number of muffins given each day (1 per child) and the number of children (3).

Now, let's solve for the missing number (?):

15 ÷ ? = 3

To find? (the number of days), we can divide both sides of the equation by 3:

15/3 = ?

This simplifies to:

? = 5

Therefore, Rick can give the muffins to his children for a total of 5 days.

So, the correct answer is: B. 5

Answer D) 60 ÷ 10 =?

To find the missing number in the equation 10 × ? = 60, we can look for a number sentence that represents the same relationship. The correct choice is:

D. 60 ÷ 10 = ?

Explanation: This choice represents the operation of division, and when you divide 60 by 10, you get the missing number (?).

So, the correct answer is: D. 60 ÷ 10 =?

Answer C) 1/2 = 3/6

The correct number sentence that is true is: 1/2 = 3/6

Explanation: Both sides of the equation represent the same amount. When you simplify the fraction
3/6, you get 1/2. Therefore, 1/2 is equal to 3/6

​So, the correct answer is: C. 1/2 = 3/6

Answer D) 2 × 10

Explanation: To solve this, we need to understand multiplication as a way to find the total number of items in a group. If the picture shows groups of circles and we are to find the total number, we use multiplication when the groups have an equal number of items. For example, if there are 2 groups with 10 circles in each, the total number of circles is 2 × 10.

Therefore the correct answer is D. 2 × 10

Answer B) 3/8.

Explanation: This question tests the understanding of fractions. If a flag is divided into equal parts and a certain number of those parts are colored differently, the fraction representing the colored part is the number of colored sections divided by the total number of sections. For instance, if there are 8 equal sections and 3 are gray, the fraction of the flag that is gray is 3/8.

Therefore the correct answer is B. 3/8.

Answer B) 9

The equation 63 ÷ 7 is asking how many times 7 can fit into 63. To find the total number of pages Alexis read each day, you need to divide the total number of pages (63) by the number of days (7).

So, 63 ÷ 7 = 9.

Therefore, the correct answer is: B. 9

Answer C) Nadia should shade four more parts of the figure.

Explanation: To solve this, we need to understand fractions and how they represent parts of a whole. If the figure is divided into equal parts and Nadia needs to shade

Answer B) 23

Explanation: This question tests the ability to calculate the area of a complex shape. The area is typically calculated by counting the number of square units that cover the shape without overlapping. If the shape is irregular, it may involve breaking it down into smaller, regular shapes (like rectangles or squares), calculating their areas, and summing them up.

Therefore the correct answer is B.23

Answer D) 6

Explanation: This question tests understanding of division and equal distribution. Given that one box is heavier than 5 identical cans and the box's mass is 40 kg, to find the mass of one can, we divide the total mass of the box by the number of cans. This requires understanding that if a total mass is equally distributed among a number of items, the mass of each item is the total mass divided by the number of items.

Therefore the correct answer is D. 6

Answer D) 9:13 a.m

Explanation: This question involves calculating time intervals. The student needs to add the given minutes to the departure times of Pedro and Tina to determine when Carlos left. It tests the ability to work with time, understand the 60-minute hour, and add minutes accurately.

Therefore the correct answer is D. 9:13 a.m

Answer D) Sunday

Explanation: This question tests understanding of rounding numbers to the nearest hundred. The student needs to look at the number of tickets sold each day and determine which number rounds to 300 when applying rounding rules. The key concept here is recognizing how numbers round up or down based on their value in relation to the nearest hundred.

Therefore the correct answer is D. Sunday

Answer A) (8 × 7) + (8 × 3) = ?

Explanation: This question involves calculating the area of a rectangular space, understanding that area is the product of length and width. The student must choose the correct equation that represents the multiplication of the dimensions of different sections of the patio to find its total area. This tests their understanding of area as a concept and their ability to apply the formula for the area of a rectangle.

Therefore the correct answer is A. (8 × 7) + (8 × 3) = ?

Answer C) 5⁄8

Answer: C) 40

92 - 52 = 40

Therefore the correct answer is D.40

Answer A) 274

225 + 215 = 440
440 - 714 = 274

Therefore the correct answer is A.274

Answer: D) 10

30 × 30 × 30 = 90

9 boxes

90÷9 = 10

Answer C) 45 pints

4 × 5 = 20
5 × 2 = 10
5 × 3 = 15

Total = 45

Therefore the correct answer is C. 45

Answer D)

Explanation: This question is about data representation in different formats. The picture graph displays the number of students who prefer each hobby. The task is to find a table that accurately reflects this data. It involves counting the number of symbols representing students in the picture graph for each hobby and finding the table that lists the same numbers.

Answer D)

Explanation: This question tests the ability to interpret data from one form (a tally chart) and find its equivalent representation in another form (a picture graph). The key is to match the number of tallies for each season in the chart with the corresponding number of symbols representing students in the picture graph