You can find the difference between two numbers in more than one way. You can count up from the smaller number to the larger number. Or, you can count back from the larger number to the smaller number ...
Your child continues to use tape diagrams as a visual tool to solve word problems. Now, he solves for an unknown in any position.Here’s a second grade word problem: There are twenty-three students in ...
Subtraction problems of the type M - S = ? can be solved with various mental calculation strategies. We investigated fourth- to sixth-graders' use of the subtraction by addition strategy, first by ...
We’ve created these number bonds Year 1 activity sheets to match the small steps on the White Rose maths schemes of work. The questions include varied fluency with reasoning with problem solving, and ...
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Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add this ...
When you subtract using large numbers, it's often better to use a written method. Column subtraction is a good written method to take one number away from another. It involves writing the smaller ...
EMBED <iframe src="https://archive.org/embed/a2_Mastering_Math_Space_Subtraction_v1.0_1985_MECC_US" width="560" height="384" frameborder="0" webkitallowfullscreen ...
This study examined Korean second and third graders' understanding of multidigit addition and subtraction and particularly their ability to explain the trading required when a column sum of the ...
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