The task involves performing mental math operations on a series of numbers. Specifically, you need to:
1.
Add 10 more to each number.
2.
Subtract 10 less from each number.
3.
Add 100 more to each number.
4.
Subtract 100 less from each number.
Let's solve this step by step for each number provided in the table.
---
Number: 125
-
Add 10 more: \( 125 + 10 = 135 \)
-
Subtract 10 less: \( 125 - 10 = 115 \)
-
Add 100 more: \( 125 + 100 = 225 \)
-
Subtract 100 less: \( 125 - 100 = 25 \)
---
Number: 368
-
Add 10 more: \( 368 + 10 = 378 \)
-
Subtract 10 less: \( 368 - 10 = 358 \)
-
Add 100 more: \( 368 + 100 = 468 \)
-
Subtract 100 less: \( 368 - 100 = 268 \)
---
Number: 617
-
Add 10 more: \( 617 + 10 = 627 \)
-
Subtract 10 less: \( 617 - 10 = 607 \)
-
Add 100 more: \( 617 + 100 = 717 \)
-
Subtract 100 less: \( 617 - 100 = 517 \)
---
Number: 282
-
Add 10 more: \( 282 + 10 = 292 \)
-
Subtract 10 less: \( 282 - 10 = 272 \)
-
Add 100 more: \( 282 + 100 = 382 \)
-
Subtract 100 less: \( 282 - 100 = 182 \)
---
Number: 834
-
Add 10 more: \( 834 + 10 = 844 \)
-
Subtract 10 less: \( 834 - 10 = 824 \)
-
Add 100 more: \( 834 + 100 = 934 \)
-
Subtract 100 less: \( 834 - 100 = 734 \)
---
Number: 473
-
Add 10 more: \( 473 + 10 = 483 \)
-
Subtract 10 less: \( 473 - 10 = 463 \)
-
Add 100 more: \( 473 + 100 = 573 \)
-
Subtract 100 less: \( 473 - 100 = 373 \)
---
Number: 555
-
Add 10 more: \( 555 + 10 = 565 \)
-
Subtract 10 less: \( 555 - 10 = 545 \)
-
Add 100 more: \( 555 + 100 = 655 \)
-
Subtract 100 less: \( 555 - 100 = 455 \)
---
Completed Table
Here is the filled-in table:
| Number | Add 10 more | Subtract 10 less | Add 100 more | Subtract 100 less |
|--------|-------------|-------------------|--------------|--------------------|
| 125 | 135 | 115 | 225 | 25 |
| 368 | 378 | 358 | 468 | 268 |
| 617 | 627 | 607 | 717 | 517 |
| 282 | 292 | 272 | 382 | 182 |
| 834 | 844 | 824 | 934 | 734 |
| 473 | 483 | 463 | 573 | 373 |
| 555 | 565 | 545 | 655 | 455 |
---
Final Answer
\[
\boxed{
\begin{array}{|c|c|c|c|c|}
\hline
\text{Number} & \text{Add 10 more} & \text{Subtract 10 less} & \text{Add 100 more} & \text{Subtract 100 less} \\
\hline
125 & 135 & 115 & 225 & 25 \\
368 & 378 & 358 & 468 & 268 \\
617 & 627 & 607 & 717 & 517 \\
282 & 292 & 272 & 382 & 182 \\
834 & 844 & 824 & 934 & 734 \\
473 & 483 & 463 & 573 & 373 \\
555 & 565 & 545 & 655 & 455 \\
\hline
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of math worksheet mental addition subtraction.
