Let's solve this step-by-step based on the worksheet titled
"Counting Doubles".
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Lesson 49 – Worksheet 1: Counting Doubles
####
Part 1: Draw matching spots. Write the answers.
We are given ladybugs with spots on one half, and we need to:
-
Draw matching spots on the other half (to make it a "double").
- Then
write the total number of spots (which is double the number shown).
Let’s go through each one:
---
1.
Double 2 is ___
- The left side has
2 spots.
- Draw
2 more spots on the right side.
- Total = 2 + 2 =
4
-
✔ Answer:
4
2.
Double 3 is ___
- Left side has
3 spots.
- Draw
3 more spots on the right.
- Total = 3 + 3 =
6
-
✔ Answer:
6
3.
Double 4 is ___
- Left side has
4 spots.
- Draw
4 more spots on the right.
- Total = 4 + 4 =
8
-
✔ Answer:
8
4.
Double 1 is ___
- Left side has
1 spot.
- Draw
1 more spot on the right.
- Total = 1 + 1 =
2
-
✔ Answer:
2
5.
Double 5 is ___
- Left side has
5 spots.
- Draw
5 more spots on the right.
- Total = 5 + 5 =
10
-
✔ Answer:
10
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####
Part 2: Draw the dominoes.
Now we draw dominoes showing doubles.
Each domino has two halves. For “Double X”, both sides should have
X dots.
1.
Double 1
- Draw
1 dot on the left side.
- Draw
1 dot on the right side.
- Example: `[● | ●]`
2.
Double 2
- Draw
2 dots on each side.
- Example: `[●● | ●●]` (or two dots on each half)
3.
Double 3
- Draw
3 dots on each side.
- Example: `[●●● | ●●●]`
> 💡 Tip: You can arrange the dots in a pattern like a die (e.g., top-left, bottom-right, center) for clarity.
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✔ Final Answers:
#### Part 1:
- Double 2 is
4
- Double 3 is
6
- Double 4 is
8
- Double 1 is
2
- Double 5 is
10
#### Part 2:
-
Double 1: `[● | ●]`
-
Double 2: `[●● | ●●]`
-
Double 3: `[●●● | ●●●]`
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This worksheet teaches
doubles facts, which are essential for mental math and addition fluency.
For example:
- 2 + 2 = 4
- 3 + 3 = 6
- etc.
By drawing matching spots, students visualize that doubling means having
two equal groups.
Let me know if you'd like a printable version or visual drawings!
Parent Tip: Review the logic above to help your child master the concept of addition worksheet for lkg.