Add multi-digit whole numbers.

Question

Use
Click to add text
understand multi-digit addition.
to
Estimate to predict and
check
Click to add text
Use strategies to mentally add multi-digit numbers.
Words to Know
Fill in this table as you work through the lesson. You may also use the glossary to help you.
strategy
a
Click to
L
add text

digit
Click to add text

place value

the value of where a digit is

sum

the result of text Click to add
of action designed to achieve a specific goal
any of the symbols (0 to 9) that are used to write a
Click to add text
in a number
two or more numbers

Answer 1

Certainly! Here's a filled-in version of your table based on multi-digit whole number addition:

| Words to Know | Definition | |---------------------|------------------------------------------------------------------------------------------------------------| | strategy | A plan of action designed to achieve a specific goal, such as using carrying or breaking numbers apart to add. | | digit | Any of the symbols (0 to 9) that are used to write a number. | | place value | The value of where a digit is located in a number, which determines its worth based on its position (e.g., ones, tens, hundreds). | | sum | The result of adding two or more numbers together. |

Understanding Multi-Digit Addition

1. Estimate to predict and check

   • Before performing the exact addition, you can estimate the result to get a rough idea of what the sum should be. This can help check your work later.

2. Strategies to mentally add multi-digit numbers

   • You can use strategies like rounding numbers to the nearest ten or hundred to make mental calculations easier.
   • Break apart numbers into smaller, more manageable parts (for example, adding tens and then adding the ones).

If you have specific problems you want to add or need more strategies, feel free to ask!