Problem Analysis:
The image is a worksheet for the "100th Day of School." The task involves coloring groups of 10 circles in different colors and then determining how many total groups are colored and how many leftover circles remain.
#### Key Details:
1.
Total Circles: There are 100 circles in total (arranged in a grid).
2.
Instructions:
- Color 10 circles in red.
- Color 10 circles in orange.
- Color 10 circles in yellow.
- Color 10 circles in green.
- Color 10 circles in blue.
- Color 10 circles in purple.
- Color 10 circles in pink.
- Color 10 circles in black.
- Color 10 circles in gray.
- Color 10 circles in brown.
3.
Questions to Answer:
- How many total groups of 10 are colored?
- How many leftover circles remain?
---
Solution:
#### Step 1: Count the Total Groups of 10
- According to the instructions, you need to color 10 circles for each of the 10 colors listed:
- Red
- Orange
- Yellow
- Green
- Blue
- Purple
- Pink
- Black
- Gray
- Brown
- Since there are 10 colors and you color 10 circles for each color, the total number of groups of 10 is:
$$
10 \text{ groups}
$$
#### Step 2: Calculate the Total Number of Colored Circles
- Each group contains 10 circles, and there are 10 groups:
$$
10 \times 10 = 100 \text{ circles}
$$
#### Step 3: Determine the Number of Leftover Circles
- The worksheet has a total of 100 circles.
- After coloring all 10 groups of 10 circles, you have used all 100 circles.
- Therefore, the number of leftover circles is:
$$
100 - 100 = 0
$$
---
Final Answers:
1.
How many total groups?
$$
\boxed{10}
$$
2.
How many leftover?
$$
\boxed{0}
$$
---
Explanation:
This activity helps students practice counting by tens and understand the concept of grouping. By coloring 10 circles for each color, they visually see how 10 groups of 10 make up 100. The leftover calculation ensures they understand that all circles are accounted for, reinforcing the idea of completeness in reaching 100.
Parent Tip: Review the logic above to help your child master the concept of 100th day of school worksheet.
