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Find the Unknown Number

Authored by Anthony Clark

Mathematics

3rd Grade

CCSS covered

Find the Unknown Number
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9 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Mrs. Fernandez bought erasers for her students that were winter themed. She bought 80 packs with 6 erasers in each pack. How many erasers did Mrs. Fernandez purchase for her students?

Tags

CCSS.3.OA.A.3

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Subtract to find the unknown.

649 - 202 =

300

347

447

450

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Subtract to find the unknown.

906 - 384 =

500

522

602

622

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Subtract to find the unknown.

1,012 - 362 =

600

640

650

770

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Subtract to find the unknown.

3,012 - 1,225 =

1,787

2,000

2,243

2,787

Tags

CCSS.4.NBT.B.4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What unknown number makes this equation true?

___ = 881 - 72

819

161

811

809

Answer explanation

Don't forget to borrow and regroup!

Tags

CCSS.4.NBT.B.4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What unknown number makes this equation true?

56

64

46

54

Tags

CCSS.2.OA.A.1

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