Multiplying 2 Digit Numbers
Estimating then multiplying
Solve the expression
Ecosystems
Halloween
100

476 x 65 =

30,940

100

597 x 52 = 

_____ x _____ = _____

600 x 50 = 30,000

100

(62 - 12) x 11

550

100

This is the material our soil very rich and full of nutrients?

Worm castings

100

This candy is made on a stick and has a hard outside coating and a chewy center inside

Tootsie pop

200

547 x 64 =

35,008

200

5,840 x 25 = 

_____ x _____ = _____

6000 x 30 = 180,000

200

(45 + 55) x 23

2300

200

This word means to break apart

Decompose

200

This sweet treat is usually in a brown bag and when you open it is full of colorful bits

M and M's 

300

434 x 21 = 

9114

300

5,897 x67 = 

_____ x _____ = _____

6000 x 70 = 420,000

300

The difference between 4 twenty-fives and 3 twenty-fives

(4 x 25) - (3 x 25)

300

What is a predator? 

An animal that hunts or eats other animals

300

This halloween treat is round. It comes in different flavors. Some have sprinkles, powder sugar, frosting, jelly or pudding inside, or even come just plain

Donuts

400

General admission to the Buffalo Sabres is $43. If a group of 19 students attend the game, how much will the group’s tickets cost?

$817

400

In a single season, the New York Yankees sell an average of 42,362 tickets for each of their 81 home games.  About how many tickets do they sell for an entire season of home games?

40,000 x 80 = 3,200,000 tickets

400

Mr. Huynh wrote the sum of 7 fifteens and 38 fifteens on the board. Write the numerical expression and solve.

(7 x 15) + (38 x 15) = 675

400

What is the correct order for the food chain?

birds       parsley     caterpillars 

parsley, caterpillars, birds

400

This yummy treat is often used to make s'mores. It comes in a brown wrapper and the name starts with an "H"

Herseys chocolate bar

500

Farmer Green feeds 3.5 pounds of hay to each of his 4 cows daily.  How many pounds of hay will all his cows have eaten after 13 days? (Two Step)

182 pounds of hay

500

Raphael wants to buy a new car.

    a.     He needs a down payment of $3,000.  If he saves $340 each month, about how many months will it take him to save the down payment?

b.     His new car payment will be $288 each month for five years.  About what is the total of these payments?

a. about 10 months

b. about $18,000

500

A box contains 24 oranges.  Mr. Lee ordered 8 boxes for his store and 12 boxes for his restaurant.

a.    Write an expression to show how to find the total number of oranges ordered.

b.    Next week, Mr. Lee will double the number of boxes he orders. Write a new expression to represent the number of oranges in next week’s order

a. (24 x 8) + (12 x 24) = 480 oranges

b. (20 x 24) x 2 = 960 oranges

500

Where do fallen leaves go?

They fall to the ground and decompose into new soil

500

This treat is found in a small box that is usually pink or purple. The treat come in very small colorful pieces. The name on the box starts with an N. 

Nerds