Problem Description:
The task involves counting objects in sets and understanding the concept of "tens" and "ones." The worksheet is divided into two main parts:
1.
Part A: Count the number of objects in each set and write how many there are in total. Additionally, identify how many "tens" and "ones" are present.
2.
Part B: Circle a group of ten in each set, then write how many tens and ones are in total.
Let's solve each part step by step.
---
Part A: Count the number of objects in each set
####
Step 1: Analyze Set 15
-
Objects: There are 13 strawberries.
-
Counting:
- Total objects = 13
- Breakdown: 1 ten (10 strawberries) + 3 ones (3 strawberries)
-
Answer:
- Total: 13
- 1 Ten + 3 Ones
####
Step 2: Analyze Set 20
-
Objects: There are 14 flowers.
-
Counting:
- Total objects = 14
- Breakdown: 1 ten (10 flowers) + 4 ones (4 flowers)
-
Answer:
- Total: 14
- 1 Ten + 4 Ones
####
Step 3: Analyze Set 30
-
Objects: There are 16 blocks.
-
Counting:
- Total objects = 16
- Breakdown: 1 ten (10 blocks) + 6 ones (6 blocks)
-
Answer:
- Total: 16
- 1 Ten + 6 Ones
---
Part B: Circle a group of ten in each set
####
Step 1: Analyze Set 15
-
Objects: There are 17 stars.
-
Circle a group of ten: Circle any 10 stars.
-
Counting:
- Total objects = 17
- Breakdown: 1 ten (10 stars) + 7 ones (7 stars)
-
Answer:
- 1 Ten + 7 Ones
####
Step 2: Analyze Set 20
-
Objects: There are 18 circles.
-
Circle a group of ten: Circle any 10 circles.
-
Counting:
- Total objects = 18
- Breakdown: 1 ten (10 circles) + 8 ones (8 circles)
-
Answer:
- 1 Ten + 8 Ones
####
Step 3: Analyze Set 30
-
Objects: There are 19 dots.
-
Circle a group of ten: Circle any 10 dots.
-
Counting:
- Total objects = 19
- Breakdown: 1 ten (10 dots) + 9 ones (9 dots)
-
Answer:
- 1 Ten + 9 Ones
---
Final Answers:
####
Part A:
1.
Set 15: 1 Ten + 3 Ones
2.
Set 20: 1 Ten + 4 Ones
3.
Set 30: 1 Ten + 6 Ones
####
Part B:
1.
Set 15: 1 Ten + 7 Ones
2.
Set 20: 1 Ten + 8 Ones
3.
Set 30: 1 Ten + 9 Ones
---
Boxed Final Answer:
\[
\boxed{
\begin{array}{l}
\text{Part A:} \\
15. \ 1 \text{ Ten } + 3 \text{ Ones} \\
20. \ 1 \text{ Ten } + 4 \text{ Ones} \\
30. \ 1 \text{ Ten } + 6 \text{ Ones} \\
\\
\text{Part B:} \\
15. \ 1 \text{ Ten } + 7 \text{ Ones} \\
20. \ 1 \text{ Ten } + 8 \text{ Ones} \\
30. \ 1 \text{ Ten } + 9 \text{ Ones} \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of tens and ones worksheet grade 1.