Friday, November 21, 2008

Lesson XXI - Basic Subtraction



1. Helen had 3 cents, and bought a pencil with it.

Q: How much money does she have now?

C: 3-3=_

A:


2. A man had 4 horses, and sold 3 of them.

Q: How many horses does he have
left?


C: 4-3=_

A:


3. There are 5 cows in a field, and 3 are sold.

Q: How many cows are left?

C: 5-3=_

A:


4. A boy had 6 marbles, and gave 3 away.

Q: how many marbles does he have left?

C: 6-3=_

A:


5. Sally had 7 dollars and bought a pencil case for 3 dollars.

Q: How much money does Sally have left?

C:7-3=_ A:


6. A woman had 8 dollars, gave 3 away for a hat.

Q: How much money does she have left?

C: 8-3=_

A:


7. There were 9 hoses in a field, 3 of them were taken to the barn.

Q: How many horses are in the field now?

C: 9-3=_

A:


8. If there were 10 pigeons on a limb, and 3 flew away.

Q: How many pigeons were still on the limb?

C: 10-3=_

A:


9. a) 11-3=_ b) 12-3=_


10. If James had 4 apples, and gave away 4.

Q: How many apples does James have now?

C: 4-4=_

A:


11. If Emily had 5 cents, and gave 4 cents for paper.

Q: How much money does she have now?

C: _ - _ = _

A:


12. a) 6 - 4 = _ b) 7 - 4 =_


13. a) 8 - 4 = _ b) 9 - 4 = _

c)10 - 4 = _ d) 11 - 4 = _


14. a) 12 - 4 = _ b) 13 - 4 = _


15. Form the subtraction tables of threes and fours.

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