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3 digit subtraction
Vocabulary
4 digit subtraction
Estimating
Find the Unknown
100
331-125
206
100
What is it called when a number is close to the exact number?
Estimate
100
1,559-1,202=
357
100
Estimate. Round to nearest 10 and subtract. 99-42=
50
100
99-33=
66
200
409-310=
99
200
An operation that tells the difference; when something is taken away.
Subtraction
200
2, 951-1,724=
1227
200
Estimate. Round to nearest hundred and subtract. 754-229=
600
200
145-23=
122
300
648-119=
529
300
To rename a number using place value.
Regroup
300
2, 360-231=
2129
300
Estimate. Round to nearest 10 and subtract. 362-239=
120
300
390-81=
309
400
827-208=
619
400
The answer to a subtraction problem.
Difference
400
3,804-726=
3080
400
Estimate. Round to nearest hundred and subtract. 1,342-1,101=
200
400
488-399=
89
500
700-352=
348
500
Two operations that can undo each other, such as addition and subtraction
Inverse Operations
500
1,001-922=
79
500
Estimate. Round to nearest 10 and subtract. 2,485-1,874=
620
500
1,622-75=
1547