Addition
What is 2,345 + 1,234?
Answer: 3,579
What is 5,432 − 2,111?
Answer: 3,321
What should you do when you need to subtract from 0?
Answer: Borrow from the closest place value to the left that is not zero.
A library has 2,345 books. It buys 1,250 more. How many books does it have now?
Answer: 3,595 books
Round 47 to the nearest ten.
Answer: 50
What is 12,456 + 23,321?
Answer: 35,777
What is 15,678 − 4,235?
Answer: 11,443
When you borrow through zeros, what do the zeros become?
Answer: Nines.
A school has 5,678 pencils. Students use 2,345. How many pencils are left?
Answer: 3,333 pencils
Round 132 to the nearest ten.
Answer: 130
What is 45,678 + 12,345?
Answer: 58,023
What is 45,321 − 12,456?
Answer: 32,865
Solve: 5,000 − 2,347
Answer: 2,653
A store had 12,500 toys and received 6,750 more. How many toys does it have?
Answer: 19,250 toys
Round 2,648 to the nearest hundred.
Answer: 2,600
What is 123,456 + 234,567?
Answer: 358,023
What is 123,456 − 78,234?
Answer: 45,222
Solve: 20,000 − 8,765
Answer: 11,235
A stadium can hold 45,000 people. If 28,765 seats are filled, how many seats are empty?
Answer: 16,235 seats
Round 35,782 to the nearest thousand.
Answer: 36,000
What is 456,789 + 123,456?
Answer: 580,245
When subtracting, which direction should you work?
Answer: From right to left.
Solve: 100,000 − 45,678
Answer: 54,322
A company made 125,000 toys. It sold 78,456 toys. How many toys are left?
Answer: 46,544 toys
Round 486,739 to the nearest hundred thousand.
Answer: 500,000