Curated OER
Estimating Sums of Money
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Curated OER
Estimating With Decimals
How can we estimate the answers when working with decimals? That's what the question is as the class reviews two-digit decimal addition. Have them estimate by rounding to a whole number either before or after they have completed their...
CK-12 Foundation
Problem Solving Plan, Estimation with Decimals: Shopping
Mathematicians go on a virtual shopping trip in an interactive designed to boost the concept of estimation. Scholars read and answer five questions—multiple-choice, true or false, and a discussion—with help from a drag-and-drop shopping...
Illustrative Mathematics
Movie tickets
This is a good Common Core question that relates inflation to operations with decimals and rounding. Young learners are asked to find out if an amount of money can purchase the same amount of movie tickets in 2012 as it did in 1987. They...
Curated OER
Estimating With Decimals
In this math worksheet, students complete 14 problems where they estimate money amounts and multiplication products using numbers with decimals. Examples are provided in this well-designed worksheet.
Curated OER
6-8 Baseball Fun: Percentages, Decimals, and Fractions
Middle schoolers practice the concepts behind fractions, decimals, and percents by using sports statistics on baseball cards. In this baseball math lesson plan, students use fractions and estimation to calculate statistics. Middle...
Curated OER
Estimating Expenses
In this estimation worksheet, students estimate expenses of different items by solving word problems. Students estimate expenses for 5 problems.
Curated OER
Decimal Word Problems
In this decimals worksheet, students solve 10 different word problems that include using decimals. First, they determine the amount of change received from a cashier given a specific amount. Then, students write a decimal representing...
Curated OER
Menu Mania
Students explore the concept of estimating by watching a video, and discussing the strategies for estimation. They estimate the costs for various menu items, then calculate the exact amount spent.