Over and Under Estimation

All of these sums are under 100: learners practice with three types of addition problems, each with two equations. First, they add a double-digit and single-digit number. Then, scholars add two double-digit numbers, one being a multiple...

Without measuring, can estimators determine which string is the longest? The shortest? There are two sets of strings here for learners to evaluate, circling the shortest in the first set and the longest in the second. Next, they eyeball...

Explore estimation with your math class. They will estimate how many Cheerios are in a box. Then count and group 50 Cheerios on a twist tie and attach groups to represent hundreds. They then discuss and practice skip counting and revise...

Help mathematicians estimate how many seeds are in a given vegetable or fruit. They are divided into pairs and estimate the amount of seeds in a whole fruit without seeing the inside. They then cut the fruit or vegetable in half and...

In this estimating tens worksheet, students use a picture of a group of penguins to estimate amounts, circle groups of ten, and find the total number. Students solve six problems.

In this estimating and counting worksheet, students observe pictures of items in boxes, estimate and record the total amount, and then count and record the total. Students solve 4 problems.

Young scholars estimate, solve, and check a series of addition and subtraction number and word problems. They write their estimates on a recording sheet, compute and write the answer in the next column, and check their answer with a...

Students examine and discuss a variety of ways to measure length, capacity, and weight. They estimate and measure a pencil's length using Unifix cubes, estimate and fill a measuring cup with Unifix cubes, and weigh a calculator in a...

Sal estimates lengths using units of inches, feet, centimeters, and meters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.

Students brainstorm words that describe the weight of objects. They pick up objects and estimate the weight. Afterward, students find the exact weight and compare U.S. units of weight to metric units. In groups, students create a chart...