Standard form
expanded form
Mystery
Comparing
Rounding
100

Write this number in standard form: three and forty-two thousandths.

3.042

100

Write 7.304 in expanded form using place values

 (7 × 1) + (3 × 1/10)  + (4 × 1/1000) or 

(7 x 1) + (3 x 0.1) + (4 x 0.001)

100

Write 7.12 in standard form

7.12

100

Which is greater: 0.507 or 0.57?

0.57

100

Round 0.346 to the nearest tenth

 0.3

200

Write this number in standard form: two hundred five and seven hundred twelve thousandths

205.712

200

Write 432.089 in expanded form

(4 × 100) + (3 × 10) + 2 × 1 + (8 × 1/100) + (9 × 1/1000)

or (4 × 100) + (3 × 10) + 2 × 1 + (8 × 0.01) + (9 × 0.001) 

200

What are the steps to comparing decimals?

Line up the decimals 

Fill in empty places with zeros

From left to right look for a difference and see which is greater/less

200

 Compare using <, >, or = : 

3.214 ___ 3.2140

=

200

Round 7.685 to the nearest hundredth.

7.69

300

Write this number in standard form: four tenths, six hundredths, and nine thousandths plus twenty-one

21 + 0.469

300

Write 0.706 in expanded form.

7 × (1/10)  + 6 × (1/1000) or

(7 ×0.1 )  + (6 × 0.001)

300

Write this number in standard form

10^3 + 3 + 2 X 0.01

1003.02

300

Order from least to greatest: 0.999, 0.9, 0.099.

0.099, 0.9, 0.999

300

Round 12.994 to the nearest whole number.

13

400

Write this number in standard form: six and three hundred five thousandths

6.305

400

Write 1,205.317 in expanded form

1 × 1000 + 2 × 100 + 0 × 10 + 5 × 1 + (3 × 1/10) + (1 × 1/100) + (7 × 1/1000)

  1 × 1000 + 2 × 100 + 0 × 10 + 5 × 1 + (3 × 0.1) + (1 × 0.01) + (7 × 0.001)  

400

What is equivilant to 

10 x 10 x 10 x 10

10^4

400

 Place the decimals 5.412, 5.421, 5.241,  from greatest to least

5.421, 5.412, 5.241,

400

Round 0.374 to the nearest tenth

0.4

500

Write this number in standard form: nine thousand two hundred thirteen and four hundred nineteen thousandth

9,213.419

500

Write 56.409 in expanded form.

5 × 10 + 6 × 1 + (4 × 1/10)  + (9 × 1/1000) or

 5 × 10 + 6 × 1 + (4 × 0.1)  + (9 × 0.001)

500

0.05 is 10 times greater than ____

5 is 100 times _____

0.5 is 1/100 of ________

0.005

0.05

50


500

Which is greater: 12.307 or 12.370? Explain by place value.

2.370 is greater because at the tenths and hundredths they match, thousandths: 12.307 has 7 thousandths, 12.370 has 0 thousandths but hundredths 7 vs 3? Wait — correct explanation: Compare tenths: both 3? Actually 12.307 = tenths 3, hundredths 0, thousandths 7; 12.370 = tenths 3, hundredths 7, thousandths 0. Hundredths: 0 < 7 so 12.307 < 12.370. So greater is 12.370.)

500

Explain how to round 5.788 to the nearest hundredth and give the correct answer

I looked at the thousandths place saw that 8 is greater then 5 so i rounded the hundredths place up to 9 getting 5.79.