Unit 1 Swun Math Review

Read and Write Numbers.

100

Write this in standard form. 

four and twenty-seven hundredths.

 4.27

200

Write this in expanded form. 

405.139

(4x100)+(5x1)+[1x(1/10)]+[3x(1/100)]+[9x(1/1000)]

300

Write this number in word form. 

53.831

fifty-three and eight-hundred thirty-one thousandths.

400

Write this number in standard form.

(2x100)+(8x1)+[6x(1/100)]+[7x(1/1000)]

208.067

500

Write this number in expanded form.

four hundred fifty-six and four-three thousandths. 

(4x100)+(5x10)+(6x1)+[4x(1/100)]+[3x(1/1000)]

Powers of 10.

100

What is the power of 10 value for:

10⁵

10x10x10x10x10 

or 

100,000

200

 what is the power of 10 and product of:

560x10x10x10

560,000

10³

300

8,440x10⁴

8,440,000

400

8x10⁷x9

720,000,000

500

What is the power of 10 for:

703,000

703x10³

Comparing and Rounding Decimals.

100

Compare 1.33 and 1.033.

1.33>1.033

200

Which number when rounded to the nearest one, rounds to 75?

a. 74.75

b.75.961

c.74.299

d.75.5

a. 74.75

300

Compare 0.57 and 0.570.

0.57=0.570

400

Round to the nearest hundred. 

2,673.147

2,700

500

Compare 100.01 and 10.001

100.01>10.001

Powers of 10 with decimals.

100

What is 4.5x1,000?

4,500

200

What is 15.505 ÷ 10⁴?

0.0015505

300

123.456x10⁴

1,234,560

400

7982.3÷10⁷

0.00079823

500

12,456.405÷10,000

0.12456405

Place Value Relationships.

100

Multiply 0.24by 10 until the tens place is reached. 

2.4 and 24

200

How is the 4 in the ones place different than the ones in the hundreds place? 

414.909

The 4 in the hundreds place is 100 times greater than the 4 in the ones place. 

300

Starting with 710 divide by 10 until the hundredths place is reached. 

71, 7.1, 0.71, 0.071

400

Starting with 5,500 divide by 10 until the tenths place is reached. 

550,55,5.5

500

Choose the number that has the digit 7 with a value that is 10 times greater than the value of the digit 7 in the number 47,291.

a. 381,472      b.544,729

c.475,190       d. 725,391

c. 475,190