3rd Grade Addition and Estimating Sums

Estimate the sum of 345 and 278 by rounding to the nearest hundred.

• C) 500

• B) 700

• D) 800

• A) 600

Tags

CCSS.2.NBT.A.1

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

Estimate the sum of 432 and 567 by rounding to the nearest hundred.

• B) 900

• C) 1100

• D) 800

• A) 1000

Tags

CCSS.2.NBT.B.7

CCSS.2.NBT.B.8

Find the the sum of 2,345 and 6,789.

• D) 9,131

• C) 9,132

• B) 9,134

• A) 9,133

Tags

CCSS.2.NBT.B.7

If Jon has 345 marbles and Malone gives him 278 more, how many marbles does John have in total?

• A) 543

• B) 567

• A) 623

• C) 489

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Jameson has 432 Pokémon cards and then he buys 567 more. How many cards does he have in total?

• B) 899

• C) 1100

• A) 1000

• A) 999

Tags

CCSS.4.OA.A.3

What is the sum of 2,345 and 6,789?

• A) 9,134

• B) 9,133

• D) 9,131

• C) 9,132

Tags

CCSS.4.NBT.B.4

A donut shop sold 4,567 in February and 1,234 donuts in March. How many donuts did the store sell in both months combined?

• 5,801

• 5,790

• 5,789

• 5,791

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

A gaming system is on sale for $239. A game for the system is on sale for $29. How much does the game system and the game cost altogether?

Tags

CCSS.3.OA.D.8

Emberlynn took 137 pictures last week with her new camera. This week, she took 78 pictures. How many total pictures has she taken?

Tags

CCSS.2.NBT.B.7