Mastering Whole Number Addition and Subtraction

How do you break down the number 386 for addition?

• 3 hundreds, 8 tens, 6 ones

• 3 hundreds, 6 tens, 8 ones

• 3 tens, 8 hundreds, 6 ones

• 3 ones, 8 tens, 6 hundreds

What is the sum of 386 and 237 using the breakdown method?

• 623

• 633

• 613

• 643

When subtracting without borrowing, what should you ensure about the numbers?

• Bottom numbers are larger than the top numbers

• Both numbers are equal

• Top numbers are smaller than the bottom numbers

• Bottom numbers are smaller than the top numbers

What is the result of 600 - 300?

• 300

• 500

• 200

• 400

When borrowing from tens, what happens to the number you borrow from?

• It stays the same

• It doubles

• It decreases by 1

• It increases by 1

What is the result of 680 - 400?

• 280

• 380

• 480

• 580

When borrowing from hundreds, what happens to the number you borrow from?

• It doubles

• It decreases by 1

• It increases by 1

• It stays the same

What is the result of 700 - 400?

• 500

• 300

• 400

• 200

What is the sum of 398 and 286 using the breakdown method?

• 684

• 704

• 674

• 694

What is the result of 700 - 500 using borrowing?

• 100

• 300

• 200

• 400