Write the value of the underlined digit.

841,000

90,000

800,000

80,000

8,000

Hint

Which river is the longest?

River Length (miles)
Mississippi 3,716
Nile 2,578
Volga 2,762
Yang-tze Kiang 3,314

Source: infoplease.com

Volga

Mississippi

Yang-tze Kiang

Nile

Hint

Write an equation that describes the pattern.

Input (m) 20 30 40 50 60 70
Output (n) 15 25 35

m + 10 = n

m − n = 5

m − 5= n

m + 5 = n

Hint

The amounts the cafeteria collects serving lunch are shown. How much would the cafeteria collect for serving 30, 40, and 50 students lunch?

Students Amount
10 $30
20 $60
30
40
50

$90, $130, $160

$70, $80, $90

$70, $90, $110

$90, $120, $150

Hint

Find $45 + $28.

$83

$73

$17

$63

Hint

Which of the following differences will need regrouping when you subtract?

772 − 578

778 − 508

778 − 578

772 − 571

Hint

What are all the possible outcomes if the number cube is rolled once?

1, 3, 6

1, 2, 3, 4, 5, 6

2, 4, 6

Hint

Which array shows equal groups of 2?

Hint

Find all of the factors of 15.

1, 3, 5, 15

3, 5, 15

1, 3

1, 3, 5

Hint

10.

Find 3 × 42.

125

126

122

Hint

11.

Find 176 × 4.

194

704

724

476

Hint

12.

Find the difference.

Hint

13.

Seven objects are on a luggage scale and weigh 735 pounds. If each object weighs the same amount, how much does each object weigh?

105 pounds

100 pounds

95 pounds

97 pounds

Hint

14.

Find 4,636 ÷ 2.

1,318

2,218

3,318

2,318

Hint

15.

Identify the figure that is different.

Hint

16.

Write the number represented by letter A.

3,328

3,325

3,323

3,322

Hint

17.

Describe the figure.

Hint

18.

Find $7,709 � 5.

$36,545

$37,545

$38,545

$39,545

Hint

19.

Estimate. Tell whether the estimate is greater or less than the actual product.

80 � 80 = 6,600; less than

80 � 80 = 4,800; less than

80 � 80 = 1,600; less than

80 � 80 = 6,400; less than

Hint

20.

Find 33,327 � 46.

153,042

1,533,042

1,553,042

533,042

Hint