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...
DK Publishing
Estimating
Through estimating, scholars are able to make these word problems simpler as they multiply to find approximate answers. Using an example as guidance, they solve five scenarios, each of which has space for learners to show their work. The...
Curated OER
Estimate Sums
In this estimating sums worksheet, students solve 6 word problems where they estimate the sum of 3 digit numbers by rounding to the nearest 10, 100 or 1000.
Curated OER
Rounding Numbers
In this online interactive rounding numbers worksheet, students use their math skills to fill in the 21 blanks that require them to round to the tens, hundreds, and thousands.
Curated OER
Find The Best Estimate
In this math worksheet, students find the best estimate by using the skill of rounding. The answers are written in the spaces at the bottom of the page.
Curated OER
Estimate the Sum
In this estimating worksheet, students round numbers to the nearest ten and estimate sums in a total of 9 problems. Answers are included on page 2.
Curated OER
Estimate Sums: Reteach
In this estimating sums worksheet, students review two steps to help them estimate to find sums. Students then round each addend to the nearest ten and use the number line for help. Students estimate the sums and write the numbers on the...
Curated OER
Estimate Sums: Practice
In this estimating sums instructional activity, learners round each addend to the nearest ten and then estimate the sums. Students finish with one test prep question by estimating for the sum.
Curated OER
Estimate Sums: Homework
In this estimating sums worksheet, students round each addend to the nearest ten using the number lines. Students then estimate the sum for each addition problem.
Math Doctor
Chapter 5: Decimal Notation
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...
Curated OER
Using Known Facts to Multiply and Divide Mentally
Building strong mental-math skills requires learners to have a strong number sense. They practice multiplying two and three-digit numbers in their heads using estimation or approximation. They estimate or round each number and then...
Curated OER
Number Sense and Operations
In this number sense and operations worksheet, 5th graders solve 17 different types of problems that include estimation and determining the exact answer of an equation. First, they determine the sum of two numbers closest to one listed....
Curated OER
Whole Numbers: Worksheet 2
In this whole number worksheet, students write numbers in words, write word phrases in numbers, determine place value, fill in missing numbers, round, estimate, and place numbers in ascending order.
Curated OER
Everyday Mathematics: Rounding
In this rounding practice worksheet, students sharpen their math skills as read tips pertaining to rounding numbers and try the extra practice activities.
Curated OER
Dividing Decimals
In this mathematics worksheet, 6th graders find the quotient for each problem listed. Then thy explain their estimates, divide, and multiply to check their answers.
Pennsylvania Department of Education
Order, Order
Students use pictures to identify items as ordinal numbers. In this ordinal numbers lesson plan, students use the words "before" and "after" to identify the pictures as well.
Curated OER
Subtracting Whole Numbers and Decimals
In this math worksheet, young scholars learn to subtract whole numbers and decimals. Students are given step by step directions on how to solve one sample problem, then complete 5 examples on their own. Example: 6.57 - 3.28. There is...
T. Smith Publishing
Estimate Products of Mixed Numbers
Practice, practice, practice! There are 35 problems to solve on this handout, all of them involving the multiplication of mixed numbers. Although the publisher has tagged it as designed for several Common Core standards, there are no...
Curated OER
The Seasonal Round and The Cycle of Life
Fourth graders are introduced to the concept of the seasonal round and how folklife traditions vary from season to season. They begin charting dates of personal interest on seasonal round calendars by starting with birthdays. Students...
Curated OER
Estimate Sums
In this estimating sums worksheet, students round numbers to the greatest place and then add them to solve 23 problems. Students also solve 2 test prep questions.
Curated OER
Addition, Subtraction and Estimating
In this addition, subtraction and estimating worksheet, students answer 13 questions pertaining to addition, subtraction, estimating and even/odd or 2/3-digit numbers. They can click on the Check box to find out if their answers are...
Curated OER
Finding the Percent of a Number
In this mathematics worksheet, 6th graders find the percents of various numbers. They set up the problem, estimate, and write their response. Students also compare their answers to their estimates for each problem.
University of Waterloo
Rounding and Estimating 1: Introduction
Pupils practice mental math skills in math drills. They play the online interactive game "Rounding Off" to practice rounding off different numbers. Afterward, they complete a paper based follow up exercise for reinforcement.
Curated OER
Fractions and Decimal Equivalents: Fifth Grade
Sometimes a skeleton is all you get. This lesson outline provides teachers with a basic lesson flow. Pupils will pre-test, order place value names, use manipulatives, and build and compare numbers. How this is to be done is not...