Addition - practice for 11 year olds - page 23 of 24
Number of problems found: 480
- Table 3x3
Table with numbers 3x3 in the first row: 66,24,33 in the second row: 57, ?, 19 in the third row: 18,45,60 What number comes ar mark ?. Maybe the numbers: 22,46,45,47 - Triangles
Find out whether the given sizes of the angles can be interior angles of a triangle: a) 23°10',84°30',72°20' b) 90°,41°33',48°37' c) 14°51',90°,75°49' d) 58°58',59°59',60°3' - Expressions: 2381
Determine the values of the following expressions: a) 3² - (- 4) b) 4-321 c) -32-7 - Crocuses
The garden grows daffodils, crocuses, and roses. 1400 daffodils, crocuses are 462 more, and roses are 156 more than crocuses. How many are all the flowers in the garden?
- Roses and tulips
At the florist are 50 tulips and five times fewer roses. How many flowers are in the flower shop? - Pupils
Two classes want to collect money. Boys are four-seventh pupils. In time did not pay a quarter of the boys and a sixth of the girls, which meant 12 sinners. How many pupils attend these two classes? - Concert
At a Concert, sold 150 tickets for CZK 360, 235 tickets for 240 CZK, and 412 for 180 CZK. How much were the total revenues for tickets? - Videotape
Viera bought a videotape on which you can record programs with a total length of 240 minutes. She recorded a sci-fi movie, 1 hour and 28 minutes long, five ten-minute sessions, "aerobics at home." Can she fit on the tape even the film of Robin Hood, which - Number train
The numbers 1,2,3,4,5,6,7,8 and 9 traveled by train. The train had three cars, and each was carrying just three numbers. No. 1 rode in the first carriage, and in the last were all odd numbers. The conductor calculated the sum of the numbers in the first,
- Daughters
The man conducting the census asks a woman the age of three daughters. Woman says when multiplying the age, get the number 72; if their ages add up, get a number of our house, as you see. The man says: That is not enough to calculate their ages. She says: - Brackets
Place one pair of brackets in the expression 20-16 + 10 - 4 - 2 so that the result will be 0. - With bracket
Calculate (evaluate) a simple mathematical expression with negative numbers and a bracket: 13+15*5-2*(-6) - Cinema
How many rows of seats are in the stands if you know that the first row has 24 seats and the last 50 seats, and each subsequent row has two more seats than the row before? How many seats are in the stands? - Travel by bus
Five girls are traveling by bus. Each holds in each hand two baskets. Each basket contains five cats. Each cat has five kittens. Three girls getting off the bus and another girl without baskets go on board. The bus control driver. How many legs are on the
- Expression 1
What is 7+8-(5×2)+5-4+(6×(5-3)+6)-(8+10)-7+6? - Pencils
Emil has 23 pencils in a pencil case, 18 broken. Emily has nine trims, two breaks, and four trims and goes to school. When he returned from school, he broke five pencils. How many pencils have you trimmed at school? - Juice box
In the box is 0.3 liters of juice. How many liters of juice are 9 these boxes? - 9-gon
The sum of interior angles of 9-gon is: - Hexadecimal number
What will be the hexadecimal number 303 as a decimal number?
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