Counting Back 1 and 2
In this subtraction learning exercise, 1st graders solve four subtraction problems by counting backwards from a starting number. For instance, if the problem is 8-2, students begin with eight, write 7 and 6 to find the answer.
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Assessment for the California Mathematics Standards Grade 1
Here is an assessment designed to test mathematicians' knowledge of writing numbers, comparing numbers, skip counting, solving addition and subtraction problems; along with measuring objects, telling time, identifying shapes, reading...
1st Math CCSS: Adaptable