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Test
Subtraction within 10
Dynamic subtraction within 10, missing-subtrahend and simple word-problem tasks.
Questions: 6Estimated time: 9 minutes
Time left: 00:00:00
Best results on this test
Top 10 registered students. Only each student’s best result in the period counts.
Sample questions
- Calculate: ___ − ___.
- Which number fits? ___ − __ = ___.
- There were ___ balloons. ___ balloons burst. How many were left?
- There were ___ pencils in a box. ___ were taken. How many pencils remained?
- Which equation is correct when subtracting ___ from ___?
Subtraction within 10
Subtraction tells how many objects remain after some are taken, given away or removed. The − symbol means “subtract”, and the result is called the difference.
How to subtract
Start at the first number and count backward by the amount being subtracted. In a word problem, phrases such as “taken”, “gave away”, “burst” and “left” help identify subtraction. This test never subtracts more than the starting amount, so results are not negative. Check an answer by adding the removed amount back to the difference.
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