6-1: 10s, 100s, 1000s
6-2: Estimating a product
6-3: number sense
6-5: multiplying a decimal by a whole number
6-6: multiplying two decimals
100

BONUS: Plus 400 points

What is 0.0045 x 10^4?

45

100

What is the estimated product of 709 x 0.98? 

709

100

Where does the decimal go? 0.05 x 12.4 = 62?

0.62

100

BONUS: DOUBLE POINTS

Michelle bought 2 grape sodas, 3 rootbeers, and one sprite for $8.35. If grape sodas cost $1.20 each and rootbeers cost $1.50 each, how much is a Sprite?

$1.45

100

BONUS: Plus 400 Points

0.23 x 0.07?

0.0161

200

What is 8.45 x 10^2? 

845
200

BONUS: plus 600 points

What is the best estimate and product for 0.39 x 0.71?

0.40 x 0.70 = 0.28

200

Where does my decimal go in the product: 3 x 2.5 = 75?

7.5

200

At the banana festival Ms. White bought a banana coffee for herself and one for her fiance at $6.24 a piece. How much did I spend total?

$12.48

200

What is 8.6 x 9.5?

81.7

300

What is 0.08 x 10^1?

0.8

300

Estimate the product of 206 x 5.2.

1,000 = 200 x 5

300

BONUS: 600 Points

I buy two loaves of bread at the store for $2.55 each and the total is $510. Is this correct? If not correct the answer. 

$5.10

300

BONUS: DOUBLE POINTS

Johnny buys 6 burger meals at $7.82 a piece. How much does he spend in all? If he has a $50 bill does he have enough money to buy all those meals?

$46.92, yes

300

What is 29.42 x 3.1?

91.202

400

What is 23.46 x 100?

2,346

400

What is the best estimated equation and product for 0.79 x 0.32?

0.80 x 0.30 = 0.24

400

3.1 x 6.2 = 1922. Where does the decimal go?

19.22 between the 9 and 2.

400

If Jenny makes $6.23 at her bake sale on the first day and makes the same amount each day for 7 days, how much in total does Jenny make? 

$43.61

400

What is 7.21 x 25.6? 

184.576

500

What is 0.36 x 10^3? 

360

500

Estimate the product of 402 x 4.05 and explain how you solved.

1,600 because 402 is really close to 400 and 4.05 is really close to 4, so 400 x 4 = 1,600

500

6.30 x 8 = 504. Where does the decimal go?

50.4 between the 0 and 4

500

If I buy 5 double doubles at $3.49 a piece and 3 animal fries at $2.79 a piece, how much did I spend in total? 

17.45 + 8.37 = $25.82

500

What is 5.1 x 3.64? 

18.564