Math- Unit 1 Lesson 4- Grade 1 worksheet - Free Printable

Let's solve this step by step based on the worksheet.

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Part 1: Write how many chickens. See the 5 in each row.

Each row is divided into two parts, with a dashed line indicating that there are 5 chickens on the left side of the line. We need to count the total number of chickens in each row.

#### 1.
- Left side: 5 chickens (as indicated)
- Right side: 4 chickens
- Total = 5 + 4 = 9

✔ Answer: 9

#### 2.
- Left side: 5 chickens
- Right side: 0 chickens (empty)
- Total = 5 + 0 = 5

✔ Answer: 5

#### 3.
- Left side: 5 chickens
- Right side: 1 chicken
- Total = 5 + 1 = 6

✔ Answer: 6

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Part 2: Write the partners.

This section shows groups of 5 dots (● and ○), and we need to write the addition equation for each group.

We're looking at combinations that make 5, using filled (●) and empty (○) circles.

#### 4.
- First: ●●●●○ → 4 filled, 1 empty → 5 = 4 + 1 ✔ (already given)

- Second: ●●●○○ → 3 filled, 2 empty → 5 = 3 + 2

- Third: ●●○○○ → 2 filled, 3 empty → 5 = 2 + 3

- Fourth: ●○○○○ → 1 filled, 4 empty → 5 = 1 + 4

✔ Answers:
- 5 = 3 + 2
- 5 = 2 + 3
- 5 = 1 + 4

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Part 3: Number bonds for 5

In question 5, we have four number bond diagrams, each showing 5 at the top and two boxes below. We need to fill in pairs of numbers that add up to 5.

These are the same as the "partners" above.

The possible number pairs that make 5 are:

- 0 + 5
- 1 + 4
- 2 + 3
- 3 + 2
- 4 + 1
- 5 + 0

But since there are four number bonds, we can use any four of these. Typically, they expect all different combinations.

Let’s fill them in logically:

1. 5 = 0 + 5 → □ = 0, □ = 5
2. 5 = 1 + 4 → □ = 1, □ = 4
3. 5 = 2 + 3 → □ = 2, □ = 3
4. 5 = 3 + 2 → □ = 3, □ = 2

(Or you could do 4+1 or 5+0 — but usually they want the full range.)

So, one valid set is:

- First: 0 and 5
- Second: 1 and 4
- Third: 2 and 3
- Fourth: 3 and 2

Or, if order doesn’t matter, just list all unique combinations.

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✔ Final Answers:

#### 1. 9
#### 2. 5
#### 3. 6

#### 4.
- 5 = 3 + 2
- 5 = 2 + 3
- 5 = 1 + 4

#### 5. (Number bonds)
- 0 and 5
- 1 and 4
- 2 and 3
- 3 and 2

*(Note: The order of the numbers in the boxes may vary, but they must add to 5.)*

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🔍 Explanation:

- This worksheet teaches number sense and decomposition of 5.
- It helps students see that 5 can be broken into different pairs (like 2 and 3).
- The chicken pictures help visualize grouping and counting.
- The "partners" and number bonds reinforce addition facts for the number 5.

Let me know if you'd like this formatted as a printable answer sheet!