Curated OER
Addition Drills
Begin adding two-digit numbers with young mathematicians using this set of straightforward equations, none of which require regrouping. All have two-digit addends, and one sum is a three-digit number. Scholars can reference three...
Curated OER
Addition Drills, part 2
Add them up! Scholars add up double-digit addends to find sums for 32 equations. There are three examples learners can reference if needed, and they have to regroup for many of these. The equations aren't numbered, so consider doing this...
Curated OER
Subtraction with 3 Digit Numbers #2
Take subtraction to the next level with this resource, which contains 20 subtraction problems with three-digit numbers. After completing these problems, second and third graders work on five additional problems, which involve two-digit...
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Column Addition
Third and fourth graders read the addition word problems and use the sets of numbers within the problem along with column addition to solve the problems.
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Number Wall
Use the number wall to practice addition, evens and odds, missing addends, and doubling. Learners answer various questions based on six numbers, filling in squares with digits. They list the odd numbers and total them, then list the even...
Mental Arithmetic
Mixed Addition and Subtraction Year 1
Reinforce addition and subtraction with a 30-problem arithmetic instructional activity in which scholars add and subtract numbers between one through 10.
Curated OER
Adding 2-Digit Numbers, part 2
Looking for addition practice problems? You've found them! This worksheet features 30 double-digit addend equations and three examples to guide young mathematicians. Because they incorporate carrying for almost every problem, this may be...
Curated OER
Decimal Addition
Practice adding decimals by completing 26 practice problems. Scholars examine two examples before trying these on their own. They add two and three-digit numbers with decimals, regrouping when needed. Not all numbers have decimals, but...
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Doubles and Halves 3
Build mental math skills by teaching learners to double and half three-digit numbers. They start out by doubling one of seven double-digit numbers. Next, they discuss their strategy, and then practice doubling and halving 3-digit...
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Mentally Add Two 2-Digit Numbers pg. 1
Mental math addition is the focus of this activity. Students apply a strategy outlined in the activity to find the sums. In this activity, students find the answers for twenty problems. Answers appear at the end.
Curated OER
Mentally Add 3 Digit Numbers
In this addition worksheet, students are shown how to add two 3 digit numbers in your head mentally. There are 18 problems for the students to try to work in their head.
Curated OER
Adding Two Numbers
Keep addition drills interesting by varying the exercises. There are four separate sections here for youngsters to solidify their understanding of adding three-digit addends. First, they calculate eight vertically aligned equations,...
Math Salamanders Ltd.
Column Addition: Money 3 Digits
Math whizzes solve 20 addition problems. Each problem has two money amounts added in vertically lined up columns.
Curated OER
Division of 3-Digit Decimal Numbers
Move that decimal up into the quotient! Mathematicians practice long division with three-digit dividends that have decimals to the hundredths place. All the divisors are single-digit numbers, and there are two examples demonstrating the...
Curated OER
Number and Number Relations
Upper graders multiply numbers by tens and hundreds, and multiply two and three digit numbers by one digit numbers. They participate in a teacher-led lecture and complete examples with the class, complete a worksheet, and discuss the...
Curated OER
Using Number lines in Addition and Subtraction
Adding and subtracting can be done by counting on or counting down a number line. This presentation provides a complete demonstration and examples of how one can use a number line to solve double-digit addition and subtraction problems....
Curated OER
Addition of Three Numbers; Various Digits (B)
In this finding the sums of three numbers worksheet, students add two-digit, three-digit, and four-digit numbers. Students solve 49 problems.
Curated OER
Addition of Three Numbers (B)
In this adding three numbers worksheet, students find the sums for three-digit and four-digit numbers. Students solve 100 problems.
Curated OER
Two-Digit Plus One-Digit Addition (A)
In this two-digit plus one-digit addition worksheet, students problem solve and calculate the answers to sixty-four addition equations.
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One-Digit Addition Exercises
In this addition learning exercise, students complete a total of 10 problems, adding three 2-digit numbers together. A reference website for additional resources is given.
Curated OER
Two-Digit Addition and Subtraction (C)
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 4-digit numbers.
Curated OER
Study Buddies: Subtracting Three-Digit Numbers
In this math worksheet, students will work with a coach to solve a story problem in which they must subtract three-digit numbers. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Divide Three-Digits by One-Digit 2
In this finding the quotients worksheet, students divide three digit numbers by the numerals two, three, four, or five. Students solve 12 problems.
Curated OER
One-Digit Addition and Subtraction No Regrouping (M)
In this addition and subtraction worksheet, students improve their math skills by solving the one digit addition and subtraction problems. Students do not regroup to solve the 45 equations and 2 word problems.