Unit 1 Math Review

Place Value

100

Which number is in the hundredths place?

235.674

7

200

What place is the 4 in?

24.08

Ones place

300

What number is in the thousands place?

7,621.98

7

400

What place is the 2 in?

.092

thounsandths 

500

Think of a number with a 1 in the hundredths place, a 9 in the tenths place, and a 5 in the ones place

5.91

Multiplying/Dividing

100

560 x 10³

560,000

200

3400 / 10²

34

300

4.37 x 100

437

400

564.987 / 1000

.564987

500

What is the answer to 42.987 x 10¹ in word form?

four hundred twenty nine and eighty seven hundredths 

Comparing Decimals

100

Compare:

3.64   O     2.75

3.64  >  2.75

200

Compare:

6.02  O  6.92

6.02 < 6.92

300

Compare:

.467  O  .460

.467  > .460

400

Compare:

8.1  O  8.100

8.1 = 8.100

500

Compare:

4,567.9  O  4,557.9

4,567.9 > 4,557.9

Adding/Subtracting

100

4.87 - 2.13

2.74

200

54.8 + 23.1

77.9

300

2.378 - .049

2.329

400

.78 + 2.902

3.682

500

43 + 7.12

50.12

Rounding

100

Round 2.34 to the nearest ten

2.3

200

Round 54.67 to the nearest whole number

56

300

Round 6,705 to the nearest hundred

6,700

400

Round .057 to the nearest hundredth

.06

500

Which choice below would not be 38 when rounded to the nearest whole number

37.63        38.2       37.19       38.06

37.19