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Mystery Numbers
Number Line Detectives
100

Which statement is correct?

A. 326 is greater than 362
B. 581 is less than 518
C. 694 is greater than 649
D. 427 is equal to 472

C. 694 is greater than 649

100

What number is shown by the base-ten model?

Hundreds:  🟦 🟦
Tens:      ▬ ▬ ▬ ▬
Ones:      ■ ■ ■ ■ ■

A. 245
B. 254
C. 425
D. 452

A. 245

100

Put these numbers in order from least to greatest:

315, 251, 352

251, 315, 352

100

My mystery number is greater than 400 and less than 410.

Which number could be my mystery number?

A. 399
B. 405
C. 410
D. 415

B. 405

100

Look at the number line.

200    210    220    230    240    250
 |------|------|------|------|------|
                       ▲
                       A

Which number is Point A?

A. 225
B. 235
C. 245
D. 221

A. 225

200

Choose the correct symbol.

735 ___ 753

A. >
B. <
C. =

B. <

200

What number is shown by the base-ten model?

 🟦 🟦 🟦
   ▬ ▬ ▬ ▬ ▬
  ■ ■

A. 323
B. 325
C. 552
D. 305

C. 352

200

Which list is in order from greatest to least?

A. 654, 645, 564
B. 564, 645, 654
C. 645, 654, 564
D. 654, 564, 645

A. 654, 645, 564

200

My mystery number is greater than 675 but less than 680.

Which number could be my mystery number?

A. 674
B. 675
C. 677
D. 680


C. 677

200

Look at the number line.

400    410    420    430    440    450    460
 |------|------|------|------|------|------|
          ▲
          B

Which number is Point B?

A. 411
B. 420
C. 432
D. 444


A. 411

300

Which number is greater? How do you know?

468 or 486

486 

In the tens place, 486 has an 8 and 468 has a 6, 8 is greater than 6, so 486 is the greater number!

300

What number is shown by the base-ten model?

 🟦 🟦 🟦 🟦
  ▬ ▬
   ■ ■ ■ ■ ■ ■ ■

A. 472
B. 427
C. 247
D. 407

B. 427

300

Put these numbers in order from greatest to least:

729, 792, 727, 702

792, 729, 727, 702

300

My mystery number is less than 500 and greater than 490.

Which numbers could be my mystery number?

A. 489 and 490
B. 491 and 496
C. 500 and 501
D. 480 and 485


B. 491 and 496

300

Which point on the number line represents the value 875?

        A                    B       C    D
        ●                    ●       ●    ●
        ↓                    ↓       ↓    ↓
850   |   |   |   |   |   |   |   |   |   |   900

A. Point A
B. Point B
C. Point C
D. Point D  


B. Point B

400

Which comparison is true?

A. 807 < 780
B. 625 > 652
C. 491 < 519
D. 734 = 743

C. 491 < 519

400

What number is shown by the base-ten model?

  🟦 🟦 🟦 🟦 🟦
     ▬ ▬ ▬ ▬
      ■ ■ ■

A. 435
B. 534
C. 453
D. 543

D. 543

400

Which number should come next if the numbers are being ordered from least to greatest?

346, 364, 436, _____

A. 403
B. 463
C. 634
D. 643

B. 463

400

My mystery number is greater than 820.
My mystery number is less than 830.
My number has 5 ones.

What is my number?

A. 821

B. 825

C. 835

D. 822


B. 825

400

Which point on the number line represents the value 425?

        A                    B       C    D
        ●                    ●       ●    ●
        ↓                    ↓       ↓    ↓
400   |   |   |   |   |   |   |   |   |   |   450

A. Point A
B. Point B
C. Point C
D. Point D

C. Point C

500

Select all the statements that are TRUE.

A. 836 > 683
B. 472 < 427
C. 590 = 590
D. 318 > 381
E. 704 < 740

A. 836 > 683

C. 590 = 590

E. 704 < 740


500

What number is shown by the base-ten model?

 🟦 🟦 🟦 🟦 🟦 🟦
    ▬ ▬ ▬ ▬ ▬ ▬ ▬
    ■ ■ ■ ■

A. 674
B. 647
C. 764
D. 746  


 A. 674

500

Put all four numbers in order from least to greatest:

908, 809, 890, 980

809, 890, 908, 980

500

Select all the numbers that could be my mystery number.

My number is greater than 735.
My number is less than 745.

A. 734
B. 736
C. 740
D. 745
E. 742


B. 736

C. 740

E. 742


500

Which point on the number line represents the value 638?

        A                    B       C    D
        ●                    ●       ●    ●
        ↓                    ↓       ↓    ↓
600   |   |   |   |   |   |   |   |   |   |   650

A. Point A
B. Point B
C. Point C
D. Point D

B. Point B

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