Module 4 Topic A: Decimal Test

Place Values

100

Consider the number 45.234

Which number as the digit 2 with the value 1/10 as much as the digit 2 in the number 45.234

A. 21.085
B. 32.143
C. 43.129

C. 43.129

200

Consider the number 23.4

Which number as the digit 2 with the value 1/10 as much as the digit 2 in the number 23.4

A. 123.56
B. 2.8
C. 14.258

B. 2.8

300

Consider the number 456.719

Which number as the digit 7 with the value 10 as much as the digit 7 in the number 456.719

A. 17.8
B. 32.407
C. 25.7

A. 17.8

400

A digit in the thousandths place represents ___ times as much as that same digit in the hundredths place.

 1
---
10

500

A digit in the thousands place represents ___ times as much as that same digit in the hundreds place.

10

Decimal Forms

100

Convert .7 to word form

Seven Tenths

200

Convert into 5th Grade Expanded Form

4ones 3tenths 2 thousandths 

(4x1)+ (3x0.1)+(2x.001)

300

One Thousand Eight and Four hundred Nine Thousandths

Convert into Standard Form 

1008.409

or 

            409
 1008   -----
           1000

400

Convert 4.32 into Unit Form

4 ones 3 Tenths 2 Hundreths

500

Convert 0.264 into Expanded Notation

5TH GRADE WAY

(2x.01)+(6x.01)+(4x.001)
OR
(2x 1/10)+(6x1/100)+(4x1/1000)

Rounding

100

Round 36.7 to the nearest tens

40

or 40.0

200

Round 342.21 to the nearest ones place value

342.00

or 342

300

Round 431.128 to the nearest Hundredths Value

431.13

400

Round 13.459 to the nearest tenth

13.5

500

Mr. Rogers rounded 123.456 to the nearest hundredth and got 100.000

What was his possible mistake and find the correct value.

He rounded to the nearest hundred not hundreTH. He rounded the wrong place value. 

He should have got 123.460

Comparing

100

Compare using >,<, or =

4.7_____4.3

>

200

Compare using >,<, or =

4.052_____4.1

< Less Than

300

Compare using >,<, or =

45.3_____45.300

= Equal to

400

Order these numbers from Least to Greatest

A. 1.356
B. 1.36
C. 2.202
D. 2.51

A,B,C,D

500

Order these numbers from Greatest to Least

A. 45.23
B. 35.219
C. 35.218
D. 41.1

A,D,B,C

Random

100

Multiplying a number represented by 1,000 causes each number move ___ places to the ___.

3 Places to the left

200

Multiplying a number represented by 100 causes each number to move ___ places to the ___.

2 places to the left

300

Multiplying a number represented by 1/1000 causes each number to move ___ places to the ___.

3 places to the right

400

Multiplying a number represented by 1/10 causes each number to move ___ places to the ___.

1 place to the right

500

Multiplying a number represented by 1,000 causes each number move ___ places to the ___.

3 places to the left.