Topic 1

Fractions or Decimals

100

0.9 as a fraction

9/10

200

11/1000 as a decimal

0.011

300

0.020 as a fraction

20/1000 OR 2/100

400

8/100 as a decimal

0.08

500

DOUBLE JEOPARDY!

0.0921 as a fraction

921/10,000

Expanded Form

100

What is the missing number?

20,000 + ____ + 100 + 70 = 25,170

5,000

200

Write in standard form.

3x0.1 + 8x0.01 + 6 x 0.001

0.386

300

Write in standard form.

8x1 + 2x0.01 + 3x0.001

8.023

400

Write in standard form.

9x10 + 8x1 + 3x0.1 + 4x0.01 + 9x0.001

98.349

500

What does 0.1 represent? What does 0.01 represent? What does 0.001 represent?

Tenth, Hundreth, Thousandths

Rounding Decimals

100

Round to the nearest TENTH.

39.87

39.9 or 39.90

200

Round to the nearest HUNDREDTH.

1,249.439

1,249.44 or 1,249.440

300

DOUBLE JEAOPARDY!

Round to the nearest WHOLE NUMBER.

19.893

20 or 20.000 or 20.0 or 20.00

400

Round to the nearest THOUSANDTH.

3,293,348.439

3,293,348.439

500

Which direction do you draw your arrow when rounding?

RIGHT

Comparing Decimals

100

Compare using >,<,=.

39.92 ____ 39.092

>

Greater.

200

Compare using >,<,=.

4,930.784 ____ 4,930.874

<

Less than.

300

Compare using >,<,=.

3.9000 ___ 3.9

=

Equal to.

400

Sort from LEAST to GREATEST.

0.932, 0.392, 0.923, 0.239

0.239, 0.392, 0.923, 0.932

500

Sort from GREATEST to LEAST.

46.98, 47.24, 46.99, 47.25

47.25, 47.24, 46.99, 46.98

Exponents

100

Solve.

10⁵ =?

100,000

200

Solve.

200 x 10³=?

200,000

300

Solve.

? x 10⁴= 120,000,000

12,000

400

Solve.

98 x 10^?= 980,000,000,000

10¹⁰

500

Solve.

10⁷=?

10,000,000