Curated OER
Study Buddies: Counting Back Tens and Ones
In this math worksheet, students will work with a coach to solve a problem in which they must subtract by counting back by tens and ones. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Tens and Ones
Learners view three problems involving adding or subtracting with ones and tens. Each problem is followed by an explanation and an answer as to how the problem should be done. Note: This resource contains incorrect grammar and could be...
PHET
Make a Ten
Rate the resource as a perfect 10. Pupils use an interactive to help add and subtract numbers. They first explore how to express whole numbers using hundreds, tens, and ones, then explore how to add whole numbers by combining to make...
Math Worksheets Land
Add and Subtract to 100
Give your scholars some basic practice with addition and subtraction problems. Because the answers are explained at the bottom, consider projecting this and covering up the bottom, revealing only after class responses have been shared....
Curated OER
Add and Subtract within 1000
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
Curated OER
Add and Subtract to 100
These addition and subtraction problems probably aren't written the way your scholars are used to seeing them, especially since they have double-digit addends and subtrahends. This set of eight horizontal equations gives learners a...
Curated OER
Carrying to Tens
in this addition worksheet, students read about carrying tens, then complete 13 problems, circling cubes as directed and solving. A website reference is given for additional activities.
Curated OER
Regroup and Subtract
In this regroup and subtract worksheet, students "use making 10 strategy" to regroup ones and tens and subtract 5 problems. A reference web site is provided.
Curated OER
Counting Seeds
Students practice skip counting strategies, estimation, and higher number addition. They estimate the number of seeds in bell pepper, and count seeds in groups of tens and ones after the teacher removes seeds from the pepper.
Curated OER
Same and Different
For this mathematics worksheet, learners first complete the tens place and then add the rest. Then they continue the patterns and compare each column. Students also fill in the missing addends and solve various word problems by writing a...
Curated OER
Place Value Popsicles
Students play a place value game using popsicle sticks and dice. They investigate units and tens.
Curated OER
Two-Digit Numbers Ending in 8 or 7
In this mathematics instructional activity, students circle the dots to form a complete ten and compare their problem to the one with just ones' digits. Then they add each problem and write down the corresponding problem with just the...
EdHelper
Subtraction
In this subtraction worksheet, students subtract the double digit math problems that are labeled tens and ones. Students solve 14 problems.
Curated OER
Subtraction and Unknown Addends (to 20)
How many more gallons of fuel does Mr. George need to fill his car to capacity? This word problem uses the unknown addend strategy to get scholars subtracting and thinking about the relationship between mathematical operations. There is...
Curated OER
Subtraction
Here are 12 basic subtraction facts for your pupils to work on. Each of the problems has a one-digit number subtracted from a two-digit number. This could be used as a homework assignment, in-class task, or as an assessment to see how...
Curated OER
How Many Are There?
This is a very basic worksheet intended to provide practice in solving word problems involving subtraction. Learners read the word problems then subtract to find the answer. An answer key is included.
Curated OER
Two Digit Addition with Regrouping
Students explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Students use manipulatives to represent the tens...
Curated OER
Subtracting Within The Same Ten
In this math worksheet, students practice the operation of subtraction while filling in the missing place values for the first set of problems.
Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 1
Here is an assessment designed to test mathematicians' knowledge of writing numbers, comparing numbers, skip counting, solving addition and subtraction problems; along with measuring objects, telling time, identifying shapes, reading...
Curated OER
Ten More and Ten Less
Get learners to analyze two-digit numbers based on place value, and use manipulatives to add and subtract both 1 and 10. A place value chart is available, and you can project it during guided practice. Through visualizing numbers,...
Worksheets Plus
Place Value Worksheets - What Number Am I?
Practice place value with this resource. The 12 questions consist of riddles. For example, "I have 4 tens and 2 ones. What number am I?" This is a creative approach to thinking about double-digit numbers. Answers are available so you can...
Curated OER
Place Value and Subtraction With Regrouping
In this place value and subtraction worksheet, students place pennies in the chart and use them to put numbers in the correct place value and subtract. Students use the pennies as ones and use them in regrouping.
Curated OER
Numbers Through 1000
In this numbers through 1000 practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to use number models to add and subtract.
Curated OER
Calc-You-Late Magnitudes
First graders are introduced and practice using a calculator. Individually, they enter and complete simple addition and subtraction problems. After the answer is displayed, they identify the place value for ones, tens, and hundreds...