Adding and Subtracting 3 Digit Problems

The answer to an addition problem is called a

• product

• difference

• sum

• quotient

• 400 + 200 = 600
• 500 + 200 = 700
• 500 - 200 = 400
• 500 - 200 = 300

Tags

CCSS.2.NBT.B.5

Eastfield college has 1,537 students. Richland college has 2,785. Rounding to the HUNDREDS place, approximately how many fewer students does Eastfield college have than Richland college.

• 1,300

• 1,200

• 1,100

• 1,500

Round to the nearest hundred, then estimate the sum:

123 + 456

• 580

• 600

• 650

• 500

Round to the nearest hundred, then estimate the difference:

642 − 137

• 600

• 780

• 500

• 510

The list shows the number of trees Isaiah planted in three years. He planted 521 trees in the first year. He planted 387 trees in the second year. He planted 438 trees in the third year. Isaiah wants to plant a total of 2,000 trees. How many more trees does Isaiah need to plant?

• 654

• 1,346

• 874

• 764

Tags

CCSS.3.OA.D.8

Sadie bought 234 bracelets on Monday, 456 on Tuesday, and 654 on Wednesday. How many more bracelets does she need to have 2500?

• 1156

• 3844

• 1056

• 1265

Tags

CCSS.4.OA.A.3

What is the first thing to do when adding or subtracting decimal numbers?

• add the given digits first

• move the decimal point to the left side, then subtract

• move the decimal point to the right side

• line up the decimals first, then fill in with zeros

Tags

CCSS.5.NBT.B.7