Blue and Red Groups

Multiplication

100

12 x 13

156

200

78 x 55

4,290

300

125 x 48

6,000

400

479 x 79

37,841

500

5,124 x 89

456,036

Decimals

100

12.05 + 3.2

15.25

200

5.21 - 7

1.79

300

1.20 x 8.02

9.624

400

5.4 x 6.33

34.182

500

325.8 / 3

108.6

Division

100

596/8

71 r 1

200

347 / 13

26 r 9

300

2278 / 23

99 r 1

400

7899 / 51

154 r 45

500

What do we call the answer to a division problem? 

Quotient

Higher order thinking

100

When multiplying 4.2 by 100. why do we move the decimal places two spaces to the right?

Answers may vary.

200

Describe the steps to adding a decimal number

1. Look for the decimal

2. Line the decimals up

3. Add

4. Bring down the decimal

300

How many tenths would you need to make the number 14?

140

400

Without solving the problem, how many zeros would be in the product:

4 x 10⁷

7

500

Mario said that in 23.46, the four was in the tens place. Why do you think he said tens? What is the correct answer? 

Answers may vary

Place Value

100

What place is the underlined digit in:

5.215

Thousandths

200

What place is the underlined digit in:

12.085

Tens

300

Write the following number in expanded form:

1.025

(1 x 1) + (2 x 0.01) + (5 x 0.001)

OR

(1 x 1) + (2 x 1/100) + (5 x 1/1000)

400

Write the following number in word form:

17.58

Seventeen and fifty eight hundredths 

500

5 x 10⁴

50,000