Math worksheet for practicing addition of 10, 100, and 1000 to given numbers.

Problem Description:

The task is to solve the problem by finding numbers that are 10 more, 10 less, 100 more, and 100 less than the given numbers in each box. The grid provides a structure for organizing these calculations.

Solution Approach:

For each given number in the grid, we will perform the following calculations:
1. 10 more: Add 10 to the given number.
2. 10 less: Subtract 10 from the given number.
3. 100 more: Add 100 to the given number.
4. 100 less: Subtract 100 from the given number.

We will fill in the grid accordingly.

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Step-by-Step Solution:

#### Box a: 474
- 10 more: \( 474 + 10 = 484 \)
- 10 less: \( 474 - 10 = 464 \)
- 100 more: \( 474 + 100 = 574 \)
- 100 less: \( 474 - 100 = 374 \)

#### Box b: 490
- 10 more: \( 490 + 10 = 500 \)
- 10 less: \( 490 - 10 = 480 \)
- 100 more: \( 490 + 100 = 590 \)
- 100 less: \( 490 - 100 = 390 \)

#### Box c: 520
- 10 more: \( 520 + 10 = 530 \)
- 10 less: \( 520 - 10 = 510 \)
- 100 more: \( 520 + 100 = 620 \)
- 100 less: \( 520 - 100 = 420 \)

#### Box d: 697
- 10 more: \( 697 + 10 = 707 \)
- 10 less: \( 697 - 10 = 687 \)
- 100 more: \( 697 + 100 = 797 \)
- 100 less: \( 697 - 100 = 597 \)

#### Box e: 440
- 10 more: \( 440 + 10 = 450 \)
- 10 less: \( 440 - 10 = 430 \)
- 100 more: \( 440 + 100 = 540 \)
- 100 less: \( 440 - 100 = 340 \)

#### Box f: 843
- 10 more: \( 843 + 10 = 853 \)
- 10 less: \( 843 - 10 = 833 \)
- 100 more: \( 843 + 100 = 943 \)
- 100 less: \( 843 - 100 = 743 \)

#### Box g: 811
- 10 more: \( 811 + 10 = 821 \)
- 10 less: \( 811 - 10 = 801 \)
- 100 more: \( 811 + 100 = 911 \)
- 100 less: \( 811 - 100 = 711 \)

#### Box h: 684
- 10 more: \( 684 + 10 = 694 \)
- 10 less: \( 684 - 10 = 674 \)
- 100 more: \( 684 + 100 = 784 \)
- 100 less: \( 684 - 100 = 584 \)

#### Box i: 120
- 10 more: \( 120 + 10 = 130 \)
- 10 less: \( 120 - 10 = 110 \)
- 100 more: \( 120 + 100 = 220 \)
- 100 less: \( 120 - 100 = 20 \)

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Final Answer:

The completed grid with all calculations is as follows:

| Box | Given Number | 10 More | 10 Less | 100 More | 100 Less |
|-----|--------------|----------|----------|-----------|-----------|
| a | 474 | 484 | 464 | 574 | 374 |
| b | 490 | 500 | 480 | 590 | 390 |
| c | 520 | 530 | 510 | 620 | 420 |
| d | 697 | 707 | 687 | 797 | 597 |
| e | 440 | 450 | 430 | 540 | 340 |
| f | 843 | 853 | 833 | 943 | 743 |
| g | 811 | 821 | 801 | 911 | 711 |
| h | 684 | 694 | 674 | 784 | 584 |
| i | 120 | 130 | 110 | 220 | 20 |

Thus, the final answer is:

\[
\boxed{
\begin{array}{c|c|c|c|c|c}
\text{Box} & \text{Given Number} & \text{10 More} & \text{10 Less} & \text{100 More} & \text{100 Less} \\
\hline
a & 474 & 484 & 464 & 574 & 374 \\
b & 490 & 500 & 480 & 590 & 390 \\
c & 520 & 530 & 510 & 620 & 420 \\
d & 697 & 707 & 687 & 797 & 597 \\
e & 440 & 450 & 430 & 540 & 340 \\
f & 843 & 853 & 833 & 943 & 743 \\
g & 811 & 821 & 801 & 911 & 711 \\
h & 684 & 694 & 674 & 784 & 584 \\
i & 120 & 130 & 110 & 220 & 20 \\
\end{array}
}
\]