20 : 2

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 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

 20 : 2 = 3 x 4 = 5 x 5 = 7 x 10 = 9 x 2 = 11 x 9 = 20 : 4 = 12 : 6 = 48 : 8 = 20 : 10 =

 2 x 1 + 1 = 4 x 3 - 6 = 7 x 10 - 7 = 8 x 8 + 8 = 20 : 5 + 4 = 36 : 6 + 2 = 42 : 7 + 7 = 63 : 9 + 6 = 99 : 9 - 9 = 60 : 10 + 7 =

Problems

1.-  6 friends receive 12 candies. They are shared out equally.

How many candies will each one receive?

a) 18 candies.

b) 2 candies.

c) 6 candies.

2. We are a group of 15 players and we want to form 3 teams.

How many players will there be on each team?

a) 18 players.

b) 12 players.

c) 5 players.

3. We divided 64 trading cards among 8 friends.

How many trading cards will I have?

a) 72 cards.

b) 8 cards.

c) 56 cards.

4. Amparo has 11 candies and her sister Isabel has 8 times more.

How many candies does Isabel have?

a) 19 candies.

b) 3 candies.

c) 88 candies.

5. A girl bought 4 kilos of potatoes at 40 cents per kilo and 1 can of sardine at 40 cents.

How much money did she pay altogether?

a) 84 cents.

b) 200 cents.

c) 44 cents.

6. José Luis wants to put 4 photos in an album. If 2 photos fit in one page and 3 pages are free,

How many pages did the album have?

a) 5 pages.

b) 9 pages.

c) 3 pages.

7. My dad bought 3 canaries at 3 euros each one. If he only had 4 euros,

How much money does he need to pay for them?

a) 10 Euros.

b) 13 Euros.

c) 5 Euros.

8.-  88 euros are divided among 8 friends and one of them spent 9 euros.

How much money does he have now?

a) 96 Euros.

b) 2 Euros.

c) 17 Euros.

9. Isabel bought 8 boxes with 10 colors in each one. If she loses 11 colors,

How many colors does she have now?

a) 69 colors.

b) 29 colors.

c) 13 colors.

10. If we put 36 pencils in several cases and 6 pencils fit in one case,

How many cases did we have had if 10 cases are free?

a) 52 cases.

b) 42 cases.

c) 16 cases.