Multiplying By Powers of 10
A paperclip is 0.5mm thick. How think would a stack of 10^1 paperclips be?
What is 5mm thick?
A ribbon is 2.8 meters long. About how long would 4 of these ribbons be? Estimate the product
What is approximately 12 meters?
What is 3 acres?
Alice buys 3 packs of colored pencils. Each pack costs $1.25. What is the total cost for the 3 packs?
What is $3.75?
Eoin reads 2.5 pages of his book each day for homework. How many pages will he read in 5 days?
What is 12.5 pages?
A small sticker is 0.35 mm thick. How thick would a stack of 10^2 stickers be?
What is 35mm thick?
A notebook is 1.3cm thick. Estimate the total thickness of 8 notebooks.
What is approximately 8cm?
Ellie plants 0.5 of a field with tulips. The entire field is 2.5 acres. What is the total amount of the field that Ellie plants with tulips? Shade in the grid to model the multiplication.
What is 1.25 acres
Jax rides his bike 0.75 mile each morning to school. In the afternoon, he takes the longer route home to drop off his friend that is 1.5 miles. How many miles will Jax ride to school and back in a year assuming he rides every school day (180 days)?
What is 396 miles?
KC and Hema are creating large posters for the 5th grade fundraiser. They make 5 posters. Each poster is 7.2 feet tall and 3.4 feet wide. What is the total area of all 5 posters?
What is 122.4 square feet?
A thin cardboard sheet is 0.4cm thick. How thick would a stack of 10^3 sheets be?
What is 400cm thick?
A small plant grows 1.7 inches each week. How much will it grow in 15 weeks if you estimate the total growth?
What is approximately 30 inches?
There is 0.5 of a pizza. Sreayus eats 0.8 of the 0.5 left. How much did he eat? Show your answer on a grid.
What is 0.4 eaten?
The decimal point is missing in the answer for these problems. Write them in using number sense.
- 17.8 x 0.63 = 11214
- 30.4 x 8.1 = 24624
- 0.98 x 0.5 = 49
What is
- 112.14
- 246.24
- 0.49
Gianna wants to send greeting cards during the holiday season. In 2024, the cost of a greeting card stamp is $0.55. She buys 12 stamps. What is the total for 12 stamps?
What would the total cost be for 120 stamps?
What is
- 12 stamps = $6.60
- 120 stamps = $66.00
Ms. Hunt is redoing her kitchen floor. The area of 1 tile is 3.6 square feet. What is the total area of a floor that is covered with 10^3 tiles?
What is 3,600 square feet?
Ellie goes to Starbucks and wants to buy 8 cake pops. Each cake pop costs $2.20. About how much will Ellie spend at Starbucks?
What is about $16?
Solve 5 x 0.40 using a grid
What is 2.0?
Saesha and Avyana are hosting a lemonade stand. They are filling 8-ounce cups with lemonade. They fill 9.25 cups. How many total ounces of lemonade do they have? Solve using partial products
What is 74 ounces of lemonade?
Joe wants to buy 15 pens at the Book Fair. He uses partial products to find his total. He says, "The price is $2.50 per pen, so $2 x $15 = $30, which is close to the actual answer. So, this total seems reasonable." What is the actual total and do you agree with Joe? Solve the problem anyway you chose and explain your reasoning for agreeing/disagreeing.
What is $2.50 x 15 = $37.50
So yes, Joe's reasoning is fair as the estimate and actual total is only $7.50 apart.
Make this equation true - ______ x 10^2 = 515
What is 5.15 x 10^2 = 515?
Roman drinks 1.80 liters of water each day at soccer practice. About how many total liters of water will he drink after 7 days?
Give you answer in both an estimate and the actual amount.
What is about 14L and 12.6L?
Write an equation that matches the shading on the grid.
What is 0.03 x 0.07 = 0.21
A can of soda contains 2.4 grams of sugar. How many grams of sugar are in 3.5 cans of soda? Solve using the commutative property.
What is 8.4 grams of sugar?
Write an expression that is equal to 0.12 x 0.5
What is 12/100 x 5/10