In this addition worksheet, students solve 18 problems in which the number 29, 39, or 49 is added to a two digit number. There are no hints or examples. Problems are in horizontal format for mental math.

This compendious collection of slides leaves no questions when it comes to the concept of atomic size. Thorough and easy-to-read graphs, tables, and graphics explain atomic radii, the shielding effect, the octet rule, isoelectric...

Fourth graders practice adding rice cookies. In this mental math instructional activity, 4th graders get into groups and call out numbers to each other to add mentally. Students use the rice cookies to show the answer.

In this multiplication worksheet, students use mental math strategies to multiply 2 digit numbers together. Students complete 7 problems.

In this magic tricks with numbers worksheet, students learn three tricks involving addition, subtraction, multiplication and division of simple numbers as a magic trick.

For this addition worksheet, 3rd graders practice solving 10 addition problems involving 2-digit whole numbers. Students put their answers in the shapes provided.

For this word problem worksheet, 2nd graders solve 6 math riddles. They use a hundreds chart as needed to start at a given number and add on to find the answer.

In this addition worksheet, students add the number 4 to the numbers 1 through 10. Students complete 16 problems on 20 pages.

Students explore numbers, computation, ratios, proportions, probabilities, statistics, and money in this six lessons unit. Practical applications in the real world are emphasized through an interactive approach to math in these lessons.

Students will add and subtract numbers less than 100 as well as understand and use the inverse relationship between addition and subtraction. They compose/decompose numbers up to 10 and understand a variety of situations in which...

Students add and subtract integers. For this algebra lesson, students discuss number sense as they sort numbers in the correct order. They analyze and label numbers differentiating between rational and irrational numbers.

Practice counting on from a number using these three sequence starters. Arranged in order of increasing difficulty, the first sequence begins at 5 and has learners add 9 numbers. The answers are written below each sequence, so they...

Examine commutative and associative properties with your class. They'll explore the relationships between addition and subtraction and investigate patterns as they solve addition problems. Links to an assessment and a table game are...

Pupils experience math functions as they practice their addition and subtraction skills, and fill in each table based on a given rule. There are two columns in each of the four tables. The in column is already completed and...

Second graders solve a math word problem involving the addition of two digit numbers. They discuss the problem as a class, independently explore the problem, and discuss as a class the solution and how they organized their reversed...

In this inverse relationships learning exercise, learners use the given numbers to solve the addition and subtraction sentences to solve the 16 inverse relationship problems.

In this math review worksheet, 4th graders solve word problems including all operations and 2 digit numbers. Students complete 6 multiple choice questions.

For this mathematics learning exercise, students 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...

Second graders develop the skill of place values up to the tens place. They practice identifying the values of 2 digit numbers and writing the correlating values with counting. They use the example of money to make the lesson more...

Learners explore the concept of converting improper fractions into mixed fractions. In this conversion lesson, students convert improper fractions to mixed fractions.

In this mathematics instructional activity, 2nd graders solve a number of problems by subtracting simple integers from each other. There are 42 problems to solve on the sheet.

In this math worksheet, students multiply large numbers using the grid method. Students split the number into hundreds, tens and units. Students draw a grid, multiply, and add. Example: 324x7 = 300x7 plus 20x7 plus 4x7. Students solve 26...

For this addition worksheet, students first write the 2 numbers in an addition problem that add up to 10, then write the answer by adding 1 additional number to 10.

Students explore how to read a thermometer and what the instrument does. They practice measuring hot and cold objects and discuss changes in the weather based on temperature.