10 More 10 Less Worksheet | Fun and Engaging Year 3 PDF Worksheets - Free Printable

Problem Overview:

The task involves completing number lines by determining the missing numbers. The key concept here is understanding how to add or subtract 10 from a given number to fill in the blanks. Each number line shows a sequence of numbers, and the missing numbers need to be identified based on the pattern.

Solution Approach:

1. Identify the Pattern: Look at the given numbers on each number line to determine the step size (usually 10).
2. Fill in the Blanks: Use addition or subtraction of 10 to find the missing numbers.
3. Verify: Ensure that the completed number line follows a consistent pattern.

Step-by-Step Solution:

#### 1)
Number line: \( 50 \quad 60 \quad \square \quad 80 \quad \square \quad 100 \quad \square \)
- The step size is 10.
- Missing numbers:
- After 60: \( 60 + 10 = 70 \)
- After 80: \( 80 + 10 = 90 \)
- After 100: \( 100 + 10 = 110 \)
- Completed number line: \( 50 \quad 60 \quad 70 \quad 80 \quad 90 \quad 100 \quad 110 \)

#### 2)
Number line: \( 520 \quad \square \quad 540 \quad 550 \quad \square \)
- The step size is 10.
- Missing numbers:
- Before 540: \( 540 - 10 = 530 \)
- After 550: \( 550 + 10 = 560 \)
- Completed number line: \( 520 \quad 530 \quad 540 \quad 550 \quad 560 \)

#### 3)
Number line: \( 200 \quad \square \quad \square \quad 230 \quad 240 \)
- The step size is 10.
- Missing numbers:
- After 200: \( 200 + 10 = 210 \)
- After 210: \( 210 + 10 = 220 \)
- Completed number line: \( 200 \quad 210 \quad 220 \quad 230 \quad 240 \)

#### 4)
Number line: \( 440 \quad \square \quad 460 \quad \square \quad 480 \)
- The step size is 10.
- Missing numbers:
- After 440: \( 440 + 10 = 450 \)
- After 460: \( 460 + 10 = 470 \)
- Completed number line: \( 440 \quad 450 \quad 460 \quad 470 \quad 480 \)

#### 5)
Number line: \( 280 \quad 290 \quad \square \quad \square \quad 320 \)
- The step size is 10.
- Missing numbers:
- After 290: \( 290 + 10 = 300 \)
- After 300: \( 300 + 10 = 310 \)
- Completed number line: \( 280 \quad 290 \quad 300 \quad 310 \quad 320 \)

#### 6)
Number line: \( \square \quad 400 \quad \square \quad 420 \quad 430 \)
- The step size is 10.
- Missing numbers:
- Before 400: \( 400 - 10 = 390 \)
- After 400: \( 400 + 10 = 410 \)
- Completed number line: \( 390 \quad 400 \quad 410 \quad 420 \quad 430 \)

#### 7)
Number line: \( 570 \quad 580 \quad \square \quad \square \)
- The step size is 10.
- Missing numbers:
- After 580: \( 580 + 10 = 590 \)
- After 590: \( 590 + 10 = 600 \)
- Completed number line: \( 570 \quad 580 \quad 590 \quad 600 \)

#### 8)
Number line: \( 470 \quad \square \quad 490 \quad \square \)
- The step size is 10.
- Missing numbers:
- After 470: \( 470 + 10 = 480 \)
- After 490: \( 490 + 10 = 500 \)
- Completed number line: \( 470 \quad 480 \quad 490 \quad 500 \)

Final Answer:

\[
\boxed{
\begin{array}{l}
1) \ 50 \ 60 \ 70 \ 80 \ 90 \ 100 \ 110 \\
2) \ 520 \ 530 \ 540 \ 550 \ 560 \\
3) \ 200 \ 210 \ 220 \ 230 \ 240 \\
4) \ 440 \ 450 \ 460 \ 470 \ 480 \\
5) \ 280 \ 290 \ 300 \ 310 \ 320 \\
6) \ 390 \ 400 \ 410 \ 420 \ 430 \\
7) \ 570 \ 580 \ 590 \ 600 \\
8) \ 470 \ 480 \ 490 \ 500 \\
\end{array}
}
\]