Paula wants to buy 3 shirts and 2 belts. The shirts cost $16.89 each, and the belts cost $8.97 each. Paula has $45.

Which of these amounts is the best estimate of how much more money Paula needs in order to buy the shirts and belts?

A ruby-throat hummingbird has a mass of 3.618 grams. What is that rounded to the nearest tenth?

During a science experiment, Mary found the mass of two rocks to be 41.4 grams and 74.3 grams. What is the total mass of these two rocks?

237 fifth graders and 346 fourth graders went on a field trip. Estimate how many more fourth graders were on a field trip than fifth graders.

Alberto purchased a video game that cost $32.79. He then had $56.47 left in his piggy bank. How much money did Alberto have in his piggy bank to start with?

Compare the decimals 0.345 and 0.354 using the appropriate symbol (<, >, =)

Order the following decimals from largest to smallest: 0.456, 0.465, 0.546, 0.4561

Arrange the following decimals in descending order: 0.789, 0.879, 0.897, 0.7891

On Monday, Coach Grissom drove 1.4 miles to school. After school he drove 2.87 miles to the park, 4.9 miles to the grocery store, and 7.12 miles back home. Round each driving distance to the nearest mile to estimate the number of miles Coach Grissom drove on Monday.

Estimate the sum of $$6.333$$ and $$3.92$$ by rounding to the nearest whole number.

Estimate the sum of $$3.49$$ and $$2.56$$ by rounding to the nearest whole number.

What is $$0.33$$ multiplied by $$0.3$$ ?

Multiply $$0.14$$ by $$0.2$$ .