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Word Problems
Zero Hero
Estimate Products
Partial Products
Partial Products Part Two
100
There are 36 bags filled with coins. There are 90 coins in each bag. How many coins are there in all?
What is 3,240
100
30 × 30 =
What is 900
100
Estimate the product. Round the first factor to the nearest tens, and then multiply. 65 × 8
What is 560
100

What is the partial product of 29x5=

What is 20x5=100, 9x5=45

100

What place value do you start with using the standard algorithm?

The ones place

200
Each boulder weighs 20 pounds. How many pounds do 76 boulders weigh all together?
What is 1,520
200
200 × 20 =
What is 4,000
200
Estimate the product. Round the first factor to the nearest hundred, and then multiply. 299 × 9
What is 2,700
200

What is the partial product of 12x57=

What is 12x7=84, 12x50=600

200
Look at these numbers: 2 8 9 10 Choose two numbers from the box to complete the multiplication sentence. _______ x______ = 72
What is 8 and 9
300
A chain of coffee shops ordered 60 boxes of sugar packets. Each box contained 88 packets of sugar. How many sugar packets in total did the chain of coffee shops order?
What is 5,280
300
50 × 400 =
What is 20,000
300
Estimate the product. Round the first factor to the nearest hundred, and then multiply. 232 × 9
What is 1,800
300

What are the partial products of 32x45=

What is 32x5=160, 32x40=1,280

300
Look at these numbers: 4 7 8 12 Choose two numbers from the box to complete the multiplication sentence. _____×______= 56
What is 7 and 8
400
Johnny bought 33 boxes of chocolates. There were 65 chocolates in each box. How many chocolates did Johnny buy?
What is 2,145
400
40 × 8,000 =
What is 320,000
400
There are 87 students in the poetry club. Last year, each student wrote 85 poems. About how many poems did the students in the club write in all?
What is 8,100
400

What are the partial products of 55x23=

What is 55 x 3= 165 and 55 x 20=1,100

400
Look at these numbers: 9 90 11 10 Choose two numbers from the box to complete the multiplication sentence. × = 99
What is 9 and 11
500
A cheesemaker sold 67 big wheels of cheese for $54 each. How much money did the cheesemaker receive in total?
What is 3,618
500
900 × 80 =
What is 72,000
500
Each extension cord is 52 feet long. What is the total length of 97 extension cords? Choose the best estimate.
What is 5,000
500

What are the partial products of 46 x 87?

What is 46 x 7 = 322 and 46 x 80 = 3,680

500

How can you tell how many partial products there will be?

The number of  partial products will be the same as the number of digits in the second number being multiplied.