Curated OER
Math Mammoth End of the Year Test - Grade 3
In this comprehensive diagnostic test worksheet, learners examine, study, calculate and solve 38 math problems. They work with a variety of basic math concepts and word problems.
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Adding in Our Heads
A good presentation on adding two-digit numbers. Learners are shown how to partition the numbers before trying to add them in their heads. A frog is the featured teacher of the PowerPoint, and he leads viewers through many problems and...
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Rice Cookies Addition
Fourth graders practice adding rice cookies. In this mental math lesson, 4th graders get into groups and call out numbers to each other to add mentally. Students use the rice cookies to show the answer.
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Addition
In this addition activity, learners solve 20, 3-digit addition math problems mentally. Students put their answers down on paper, but do not work out the problems on paper.
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Mental Arithmetic--Adding to Thousands
In this adding to thousands instructional activity, students mentally add 12 problems as fast as they can without using paper and only writing down their answers. Students solve 3 additional addition problems and then explain what method...
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Addition
In this addition worksheet, students mentally add together 12 math problems involving addition with 3 numbers. Students fill in the missing numbers in 3 equations.
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Addition
In this addition worksheet, learners, without using a pencil and paper, solve 12 addition problems with 3 single digit numbers each. Students fill in the missing numbers in 4 addition problems.
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Think of a Number
In this math worksheet, students engage in a mental math activity. Student think a number and follow several computations with that number and always come up with the answer 9. Students discuss why this happens.