Showing posts with label Oral and written exercises in Addition. Show all posts
Showing posts with label Oral and written exercises in Addition. Show all posts

Wednesday, October 14, 2009

III. Oral and written exercises in Addition





Friday, October 17, 2008

Lesson XVIII


1. Jennie gave the teacher 6 hyacinths, Mary gave her 4, and Minnie gave her 3.

Q: How many hyacinths did the teacher receive in all?

C: _+_+_=__

A:


2. In the park 3 boys are flying kites, 6 are playing ball, and 3 are rolling hoops.


Q: How many boys are there in the park?

C: _+_+_=__

A:


3. There are 4 soldiers in one squad, 5 in another, and 6 in another squad.

Q: How many soldiers are in all?

C: _+_+_=__

A:


4. There are 5 flags on one building, 2 on another, and 4 on another building.

Q: How many flags are there in all?

C: _+_+_=__

A:


5. Q: How many guns are 4 guns, 5 guns, and 6 guns?

C: _+_+_=__

A:


6. There are 6 birds in one cage, 2 in another, and 7 in another cage.

Q: How many birds are there in all?

C: _+_+_=__

A:


7. Jennie is 8 years old, and her brother is 5 years older.

Q: what is the age of her brother?

C: _+_=__

A:


8. Delia has 1 doll, Mina has 2 dolls, Carrie has 3 dolls, and Ruth has 2 dolls.

Q: How many dolls are there all together?

C: _+_+_+_=__

A:


9. There are 8 goblets on the shelf, 6 on the table, and 4 on the stand.

Q: How many goblets are there in the room?

C: _+_+_=__

A:


10. A wealthy gentleman had 3 draft horses, 5 riding horses, and 6 carriage-horses.

Q: How many horses did he have?

C: _+_+_=__

A:


11. A gentleman spent 4 months of every year in Florida, 2 months in the White

Mountains, 3 months in Europe, and the rest of the year at home.

Q: How many months was he away from home?

C: _+_+_=__

A: He was away from home for __ months.


12. James wrote 6 lines in his writing-book on Monday, 3 lines on Tuesday, 7 lines on

Wednesday, and 4 lines on Thursday.

Q: How many lines did he write in his writing- book in those four days?

C: _+_+_=__

A:


13. a) 8+2+3+5=__ b) 7+3+4+4=__


14. a) 1+2+6+9=__ b) 8+1+5+3=__


15. a) 7+1+8+2=__ b) 3+3+3+3+__


16. How many are 6, 3, and5?


17. How many are 4, 7, and 8?

Tuesday, October 14, 2008

Lesson XVII.

1. Ruth picked 4 pinks from one stem, 3 from another, and 2 from another.
Q: How many pinks did Ruth pick?

C: _+_+_=__

A:

2. If there are 6 boys in one class, 7 in another, and 5 boys in another.
Q: How many boys are there in the three classes’ altogether?
C: _+_+_=__

A:


3. How many bells are 5 bells, 2 bells, 6 bells and 4 bells?


C: _+_+_+_=__

A:


4. A merchant sold 5 yards of calico to one girl, 3 yards to another, and 6 to another girl.

Q: How many yards did he sell?

C: _+_+_=__

A:


5. Lucy had 8 pins, and found ten more.

Q: How many did she have then.


C: _+_+_=__

A:


6. a) 2+2+2=_ b) 3+3+3=_ c) 5+5+5=__ d) 6+6+6=__

7. 9+1+4+2=__

8. 4+2+3+0=__

9. 1+5+2+3=__

10. 2+5+4+3=__

11. 6+1+2+3=__

12. 8+0+3+1=__

13. 5+2+6+5=__

14. 1+8+2+4=__

15. 3+6+5+4=__

Friday, October 10, 2008

Lesson XVI

1. There is 1man on the steps and there are 9 men in the store.

Q: How many men are there in all?

C: _+_=__

A:


2. Henry sold 2 books on Tuesday and 9 books on Wednesday.

Q: How many books did he sell in all?

C: _+_=__

A:


3. How many shells are 3 shells and 9 shells?

C: _+_=__

A:


4. How many boats are 4 boats and 9 boats?

C: _+_=__

A:


5. Jennie is 5 years old, and her sister is 9 years older.

Q: How old is her sister?

C: _+_=__

A:


6. How many are 6 and 9? 7 and 9?

C: _+_=__ ; _+_=__


7. There are 8 trees in one row and 9 in another.

Q: How many trees are there in both rows?

C: _+_=__

A:


8. How many plants are 9 plants and 9 plants?

C: _+_=__

A:


9. How many books are 9 books and 10 books?

C: _+__=__

A:


10. A beggar had 1 cent, and the boy gave him 10 cents.

Q: How many cents does the beggar have now?

C: _+__=__

A:


11. There are 2 strawberries on one stem and 10 on another.

Q: How many strawberries are there all together?

C: _+__=__

A:


12. A boy paid 7 shillings for oil and 10 shillings for a lamp.

Q: How much did the boy have to pay for both items?

C: _+__=__

A:


13. How many oranges are 3 oranges and 10 oranges?

C: _+__=__

A:


14. a) 4+10=__ b) 5+10=__ c) 6+10=__


15. How many are 9 and 10? 10 and 10?

C: _+__=__ ; __+__=__


16. Form the addition tables of nine and ten.

Wednesday, September 17, 2008

First Lessons in Arithmetic: Lesson XV. - adding three numbers



As a mathematical operation, addition follows several important patterns. It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, order in which addition is performed does not matter (see Summation). Repeated addition of 1 is the same as counting; addition of 0 does not change a number. Addition also obeys predictable rules concerning related operations such as subtraction and multiplication. All of these rules can be proven, starting with the addition of natural numbers and generalizing up through the real numbers and beyond. General binary operations that continue these patterns are studied in abstract algebra.
Performing addition is one of the simplest numerical tasks. Addition of very small numbers is accessible to toddlers; the most basic task, 1 + 1, can be performed by infants as young as five months and even some animals. In primary education, children learn to add numbers in the decimal system, starting with single digits and progressively tackling more difficult problems. Mechanical aids range from the ancient abacus to the modern computer, where research on the most efficient implementations of addition continues to this day.
Lessons in this series:


Wednesday, September 10, 2008

Thursday, September 4, 2008

Wednesday, September 3, 2008

USA: