Classify Objects

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Answer Key & Explanations

Classify Objects · Kindergarten · Worksheet 3

1. You have 4 red circles, 5 blue circles, and 3 green circles. How many circles are blue? Answer: 5 Solution: The problem gives us 4 red circles, 5 blue circles, and 3 green circles. The question asks specifically about blue circles. Count only the blue circles: there are 5 blue circles.
   Full step-by-step solution

   Step 1: The problem gives us 4 red circles, 5 blue circles, and 3 green circles. Step 2: The question asks specifically about blue circles. Step 3: Count only the blue circles: there are 5 blue circles. Step 4: The answer is 5.

2. Mere is at the zoo. She sees 12 animals in the big field. 7 of the animals have stripes like zebras. The other animals have spots like giraffes. She sees a new animal with no stripes and no spots. It is plain brown. Which group does the plain brown animal belong to—the striped group or the spotted group? Answer: spotted group Solution: The problem says there are two groups: animals with stripes and animals with spots. The plain brown animal has no stripes, so it cannot be in the striped group.
   Full step-by-step solution

   The problem says there are two groups: animals with stripes and animals with spots. The plain brown animal has no stripes, so it cannot be in the striped group. It must go with the spotted group, even though it doesn't have spots itself—it is simply not striped.

3. Emma is sorting her toy animals. She has a red ball, a blue square block, and a yellow star. She wants to put all the round things in one basket. Which toy should go in the basket? Answer: red ball Solution: The red ball is the only toy that is round. The blue square block has corners and the yellow star has points. Only round things go in the basket.
4. Matiu has a group of shapes: ⭐️ 🔵 ⭐️ 🔵 ⭐️ 🔵 ⭐️. How many stars are in the group? Answer: 4 Solution: Write the shapes in order: ⭐️ 🔵 ⭐️ 🔵 ⭐️ 🔵 ⭐️. Step 2: Find all the stars: positions 1, 3, 5, and 7 are stars. Step 3: Count them: there are 4 stars.
   Full step-by-step solution

   Step 1: Write the shapes in order: ⭐️ 🔵 ⭐️ 🔵 ⭐️ 🔵 ⭐️. Step 2: Find all the stars: positions 1, 3, 5, and 7 are stars. Step 3: Count them: there are 4 stars. The answer is 4.

5. In Nikau's classroom, there are 8 red circles and 7 blue triangles. The teacher says to put all the circles together. How many circles are there? Answer: 8 Solution: The problem says to group all the circles together. There are 8 red circles and 7 blue triangles. The circles are the red ones.
   Full step-by-step solution

   The problem says to group all the circles together. There are 8 red circles and 7 blue triangles. The circles are the red ones. So there are 8 circles. The answer is 8.

6. Isabella has 8 star stickers and 9 heart stickers. She puts them in a bag. She wants to take out only the star stickers. Which sticker should she look for? Answer: star Solution: Read the problem. Isabella has two kinds of stickers: stars and hearts. Step 2: She wants only the star stickers.
   Full step-by-step solution

   Step 1: Read the problem. Isabella has two kinds of stickers: stars and hearts. Step 2: She wants only the star stickers. Step 3: The shape that looks like a star with points is the correct one. Step 4: So she looks for the star sticker. The answer is star.

7. Hana has some fruit: 🍌 🍎 🍌 🍌 🍎 🍎 🍌. How many bananas are there? Answer: 4 Solution: Look at the fruit in order: 🍌 (banana), 🍎 (apple), 🍌 (banana), 🍌 (banana), 🍎 (apple), 🍎 (apple), 🍌 (banana). We need to count only the bananas (🍌). Find each banana: position 1, position 3, position 4, and position 7.
   Full step-by-step solution

   Step 1: Look at the fruit in order: 🍌 (banana), 🍎 (apple), 🍌 (banana), 🍌 (banana), 🍎 (apple), 🍎 (apple), 🍌 (banana). Step 2: We need to count only the bananas (🍌). Step 3: Find each banana: position 1, position 3, position 4, and position 7. Step 4: Count the bananas: 1, 2, 3, 4. The answer is 4.

8. Mason is helping his teacher sort the class's art supplies. There is a big basket of shapes. He puts all the circles in one bin and all the squares in another bin. Mason finds a red square. Which bin does the red square go into? Answer: The square bin Solution: Read the problem. Mason is sorting shapes into two bins: one for circles and one for squares. The object is a red square.
   Full step-by-step solution

   Step 1: Read the problem. Mason is sorting shapes into two bins: one for circles and one for squares. Step 2: The object is a red square. Its color is red, but the sorting rule is based on shape. Step 3: The shape is a square, so it goes in the square bin. Answer: The square bin.

9. Emma has some fruit: 🍎 🍎 🍌 🍎 🍌 🍌 🍎 🍌 🍎. Count only the apples (🍎). How many apples are there? Answer: 5 Solution: Look at all the fruit in order: 🍎, 🍎, 🍌, 🍎, 🍌, 🍌, 🍎, 🍌, 🍎. Find only the apples (🍎): positions 1, 2, 4, 7, and 9 are apples. Count the apples: 1, 2, 3, 4, 5.
   Full step-by-step solution

   Step 1: Look at all the fruit in order: 🍎, 🍎, 🍌, 🍎, 🍌, 🍌, 🍎, 🍌, 🍎. Step 2: Find only the apples (🍎): positions 1, 2, 4, 7, and 9 are apples. Step 3: Count the apples: 1, 2, 3, 4, 5. Step 4: There are 5 apples. The answer is 5.