15 : 3

 Tables of multiplication - - - - - - - - - - Tables of division - - - - - - - - - -

 Simple operations Combined operations Problems Aritmetic tables

Instructions: Press one of the buttons on the right column The correct number is put in red .

In the combined operations, you must do the first operation with the first two numbers. Then, you must do the second operation with the result and the third number.

# Simple operations

 15 : 3 = 2 x 4 = 4 x 3 = 6 x 9 = 8 x 7 = 9 x 7 = 10 : 5 = 42 : 7 = 81 : 9 = 44 : 11 =

 4 x 6 - 2 = 3 x 3 - 4 = 9 x 9 - 9 = 5 x 9 + 4 = 4 : 2 + 1 = 9 : 3 + 1 = 8 : 2 - 1 = 36 : 6 + 8 = 121 : 11 + 7 = 63 : 7 + 11 =

# Problems

1. Juan is 2 years old and his older brother is 3 times older.

How old is John’s brother?

a) 1 year.

b) 6 years.

c) 5 years.

2. Paul has 36 cents.

How many postcards can he buy if a postcard cost 6 cents?

a) 6 postcards.

b) 42 postcards.

c) 30 postcards.

3. Santiago, the fruit seller, divided 54 oranges among 9 children

How many oranges will each children receive?

a) 45 oranges.

b) 6 oranges.

c) 63 oranges.

4. If a squirrel eats 9 nuts,

How many nuts will 8 squirrels eat?

a) 72 nuts.

b) 17 nuts.

c) 1 nut.

5. Augustine wants to put 24 photos in an album. If 4 photos fit in one page and 6 pages are free,

How many pages did the album have?

a) 34 pages.

b) 12 pages.

c) 26 pages.

6. My dad bought 5 canaries at 5 euros each one. If he only had 6 euros,

How much money does he need to pay for them?

a) 16 Euros.

b) 31 Euros.

c) 19 Euros.

7. We share out 36 trading cards between 6 friends. Then I bought 3 more trading cards.

How many trading cards will I have now?

a) 45 cards.

b) 3 cards.

c) 9 cards.

8. Montse bought 7 boxes with 9 colors in each one. If she loses 7 colors,

How many colors does she have now?

a) 56 colors.

b) 63 colors.

c) 23 colors.

9. If we place 77 pencils in several cases and 7 pencils fit in each one of them,

How many cases did I have if 7 cases are free?

a) 91 cases.

b) 14 cases.

c) 18 cases.

10. A group of 8 squirrels eat 10 nuts each one. If 9 nuts are left over,

How many nuts did they have in the beginning?

a) 27 nuts.

b) 71 nuts.

c) 89 nuts.

®Arturo Ramo García.-Record of intellectual property of Teruel (Spain) No 141, of 29-IX-1999
Plaza Playa de Aro, 3, 1º DO 44002-TERUEL

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