Question

circle 2 parts you see. make a number bond to match

1. image 3. image 4. image 5. image 6. image 7. image 8. image

eureka math

Explanation:

To solve these number bond (part - whole) problems, we analyze each one by identifying the total number of objects and then finding two parts that add up to that total.

Problem 1

• Step 1: Count the total number of dots
• We have two groups of dots. One group has 3 dots and the other also has 3 dots. To find the total, we use the addition operation. The formula for the total (whole) when we know the two parts is \( \text{Part}_1+\text{Part}_2=\text{Whole} \). So, \( 3 + 3=6 \).

Problem 2 (assuming the dot arrangement)

• Step 1: Count the total number of dots
• Let's say we can split the dots into two parts. If we have 2 dots in one part and 5 dots in the other part (by counting), then the total is \( 2+5 = 7 \) (or other valid part - whole combinations depending on the actual dot count).

Problem 3

• Step 1: Count the total number of dots
• There are 9 dots (3 rows of 3 dots each). We can split 9 into two parts. For example, \( 4+5 = 9 \) (or \( 3 + 6=9 \), \( 2+7 = 9 \), \( 1+8 = 9 \))

Problem 4

• Step 1: Count the total number of dots
• Let's assume we have two groups of dots. If one group has 4 dots and the other has 2 dots, then the total is \( 4 + 2=6 \) (or other combinations based on the actual dot count).

Problem 5

• Step 1: Count the total number of stars
• We have 3 stars in one group and 4 stars in another group. So the total number of stars is \( 3+4 = 7 \)

Problem 6

• Step 1: Count the total number of stars
• There are 3 stars in one row and 3 stars in another row. So the total is \( 3+3 = 6 \)

Problem 7

• Step 1: Count the total number of stars
• Let's count the stars. We have 3 stars at the top, 2 in the middle, and 3 at the bottom. The total is \( 3 + 2+3=8 \). We can split 8 into two parts, for example, \( 3+5 = 8 \) (or other valid splits)

Problem 8

• Step 1: Count the total number of stars
• Let's say we have 1 star separate and 6 stars in a group. The total is \( 1+6 = 7 \) (or other combinations based on the actual star count)

Since the problem is about number bonds (part - whole relationships in arithmetic), the sub - field of Mathematics that applies is Arithmetic (a part of the broader Mathematics discipline, and can be related to the sub - fields like Basic Math Operations which is a fundamental part of Mathematics education).

If we take Problem 1 as an example:

Step 1: Identify the parts

We have two groups of 3 dots each.

Step 2: Calculate the whole

Using the addition formula \( \text{Whole}=\text{Part}_1+\text{Part}_2 \), we substitute \( \text{Part}_1 = 3 \) and \( \text{Part}_2=3 \). So \( 3 + 3=\boldsymbol{6} \)

Answer:

For Problem 1, the whole number (total) is 6. (For other problems, the answers will vary based on the actual part - whole analysis of the dot/star arrangements)