Review for Quarter 1 Review for Quarter 1 Test 1Test 1

Review for Quarter 1 Review for Quarter 1 Test 1Test 1

I. Base Ten Place-Value SystemI. Base Ten Place-Value System

II. ExponentsII. Exponents

III. Expanded NotationIII. Expanded Notation

IV.IV. Mental Math with Mult. & DivisionMental Math with Mult. & Division

V. Estimating with Whole NumbersV. Estimating with Whole Numbers

VI. Order of OperationsVI. Order of Operations

Estimate: 74,298 + 126,001 ≈

Answer: 70,000 + 130,000 = 200,000

Evaluate:[8 ÷ (1 + 3) x 52 - 2] ÷ 6

Answer: 8

Give the base:1) ___2 = 6400 2) ___3 = 125,000

3) ___4 = 160,000 4) ____ 3 = 8,000,000

Answers: 1) 80 2) 50 3) 20 4) 200

Answer: 300,000 ÷ 600 ≈ 500

Estimate: 320,176 ÷ 623 ≈

Complete the statement. Use +, -, x or ÷. Use the symbol

only once. Do not use parentheses.7 ___ 7 ___ 7 ___7 = 14

Answer: 7 + 7 ÷ 7 x 7 = 14

1012 =

Answer: 1,000,000,000,000

35=

Answer: 243 (Remember 35 means repeated multiplication.)

35 = 3 x 3 x 3 x 3 x 3

Estimate: 4,298 x 63 ≈

Answer: 4,000 x 60 ≈ 240,000

What is the value of the 4 in 54,907,112?

Answer: 4,000,000

In the number 68,134,754,029, the 6 is in

which place-value?

Answer: ten billions

3,000,000 + 6,000 + 500 + 30 + 8 =

Answer: 3,006,538

(2 x 108) + (7 x 106) + (1 x 103) + (5 x 100) =

Answer: 207,001,005

In 801,692,746, the zero is in which place-value?

Answer: ten millions

72,009,260 written in expanded form using

powers of 10 is _______

Answer: (7x107)+(2 x 106)+(9 x 103)+(2 x 102)+(6 x 101)

Compare. Use <, > or =.1) 33___ 25

2) 10,0000____ 104

3) 26 ____ 43

Answers: 1) < 2) < 3) =

Multiply or divide mentally.1) 300 x 400 = 2) 72,000 ÷ 80 =3) 50 x 6,000 = 4) 120,000 ÷ 600 =5) 60 x 900 = 6) 540,000 ÷ 9,000 =7) 110 x 70 = 8) 36,000 ÷ 40 =9) 300 x 500 = 10) 3000 ÷ 150 =Answer: 1) 120,000 2) 900

3) 300,000 4) 200

5) 54,000 6) 60

7) 7700 8) 900

9) 150,000 10) 20

8___ = 4096

Answer: 4

Use 4, 7, 8 to make the sentence true.

____ + ____ x ____ = 36

Answer: 8 + 4 x 7 = 36

2-- = 64

Answer: 26

The standard form of (2 x 107)+(9 x 104)+(1 x 102)+(6 x 101)

is __________

Answer: 20,090,160

Estimate: 52,178 - 3,823 ≈

Answer: 52,000 - 4,000 = 48,000

True or False: 54 =45

Explain.

Answer: False. 54 = 5x5x5x5=625

45 = 4x4x4x4x4=1024