Adding and Subtracting 3 and 4 Digit Numbers

Round to the nearest hundred, then estimate the sum:

123 + 456

• 580

• 600

• 650

• 500

Round to the nearest thousand, then estimate the sum:

2,764 + 4,851

• 7,000

• 6,000

• 5,000

• 8,000

Round to the nearest hundred, then estimate the difference:

642 − 137

• 600

• 780

• 500

• 510

Round to the nearest thousand, then estimate the difference:

98,412 - 45,802

• 53,000

• 51,000

• 52,000

• 51,872

Round to the nearest ten thousand, then estimate the difference:

887,167 - 342,208 =

• 500,000

• 554,000

• 545,959

• 550,000

117-83=

• 200

• 34

• 72

• 56

12,000 - 7,508 =

• 15,508

• 4,492

• 4,302

• 19,508

17,959 + 10,078 =

• 27,881

• 27,927

• 7,881

• 28,037

Peyton earned $14,945 at his summer job. He spent $6,858 to have a pool put in his backyard. How much money does he have left?

• $8,087

• $21,803

• $2,113

• $12,113

978 + 300 + 255 =

• 423

• 1,533

• 1,423

• 1,278