Curated OER
Adding Tenths
In this mathematics worksheet, 4th graders identify what is missing from the whole 1 in each problem. Then they draw a number line from 0 to 2 with tick marks at every tenth place. Students also add each decimal and write their...
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...
Fuel the Brain
Brain Boosters - Add Ten on a Number Line
Encourage learners to use pictures, numbers, or words to solve two-word problems in which they count by 10's using a number line. They tell the total number of items the child has in each problem by starting at a given number and adding...
Math Salamanders Ltd.
Addition - Adding on Tens Sheet 1
In this adding on tens activity, students add multiples of 10 to given numbers. A reference website is given for additional activities.
Curated OER
Addition Drills, part 3
Here's an addition drill for scholars who are already comfortable with regrouping. There are 30 horizontally-aligned problems here, each with two 2-digit addends. Mathematicians use three examples as reference as they solve each of...
Curated OER
Follow the Decade Rules
In this number sense worksheet, students find the missing numbers. Students are to find the missing number or numbers using the rule supplied, or find the rule for the numbers supplied to complete each of the eight charts.
Curated OER
Abacus Work
In this abacus instructional activity, students use abacus pictures to determine 5-digit sums. In this fill in the blank instructional activity, students write eight answers.
Curated OER
Multiplying
There is a step-by-step example here to help young multipliers solve 12 equations, all of which have one 2-digit and one 1-digit factor. The method displayed encourages breaking the two-digit number into tens and ones, multiplying each...
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
Addition: Up to 2-Digits Using Place Values
In this addition worksheet, students solve 9 problems in which two digit numbers are added with no regrouping. Students rewrite an addition sentence that is in horizontal format and stack the numbers in a place value chart.
Curated OER
Multiplying Whole Numbers
For this multiplication of whole numbers worksheet, students follow step by step directions to multiply two pairs of numbers without using a calculator.
Curated OER
Dividing Two-Digit Numbers
In this division with remainders worksheet, students solve 8 problems in which a two digit number is divided by a single digit divisor. There are detailed instructions on the page.
Curated OER
Deciding When to Regroup
In this addition learning exercise, 2nd graders determine if they need to regroup or not in 3 word problems. Students circle their answers, yes or no, and write the tens and ones numbers in the blanks provided.
Curated OER
Dividing Multi digit Numbers
In this division activity, students read through an example of how to divide a multi digit number by a single digit number. They then complete the 9 division problems on the activity.
Curated OER
Tens Barrier Addition 4
In this addition worksheet, students solve 36 problems in which a two digit number is added to a one digit number. The title meaning is not clear as there are no directions or examples. Problems are horizontal and not stacked.
Curated OER
Adding Two- and Three-Digit Numbers
In this addition activity, 4th graders add together 13 two and three-digit numbers with two and three numbers in each addition math problem.
Curated OER
Whole Number Addition Level 10
In this math learning exercise, students practice adding numbers with three digits. The skill of carrying is practiced and the instructions are given at the top of the page.
EngageNY
Estimating Digits in a Quotient
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The lesson shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the division. Some...
Math Mammoth
Grade 1 Worktext
Use graphing, counting, and number lines to help first graders learn about addition and subtraction. An array of worksheets and activities are an excellent resource for your math lesson, whether you are focusing on counting skills...
Curated OER
Standard written method for addition of 2-digits
In this addition activity, students learn how to add two 2-digit numbers together. They then use what they read to solve the 12 addition problems. That answers are on the last page.
Curated OER
Tens Barrier Addition/6
For this addition worksheet, students solve 36 problems in which two digit numbers are added to one digit numbers. Problems may need to be rewritten and stacked to make it easier for students to regroup.
Curated OER
Do You Carry the Ball?
In this addition worksheet, learners add two digit numbers together with and without regrouping. Students complete 9 problems total.
Curated OER
Adding More Than Two Numbers
In this adding more than two numbers worksheet, students, working with a partner, calculate the answers to eleven addition equations.
Curated OER
Calculator Activity: Adding Ones and Tens
In this calculator activity, students read how to add 2-digit numbers on a calculator, then use a calculator to find 8 sums.