Maths practice for 11-year-olds. - page 51 of 227

Number of problems found: 4524

Unknown fraction number
Find an unknown number if 2/5 of it is 6.2.
Number range difference
The difference between the greatest number and the smallest number of 27,15,38, -3, -5, .12 less 3 is:
Number difference triple
Three times the difference between 1.2 and 0.2
Newspaper weekly sales
From Monday to Friday, 9650 newspapers were sold, on Tuesday 1680 were sold, on Monday 50 more than on Tuesday, on Wednesday the same as on Tuesday and on Thursday 2x more than on Tuesday. How many newspapers were sold on Friday?
A swimmer 2
A swimmer swam 48 kilometers in d days. What is the value of d if the swimmer swam an average of 3.2 kilometers daily?
Integer range sum
Find the sum of all integers greater than -3 and less than or equal to 5.
Cancer - dies
One person dies from lung cancer in one and a half hours. How many people die every day?
Number multiplication division
What result do we get if we multiply 1/5 of 600 by three and divide the result by 1/10 of 100?
Erica 2
Erica bought 3 4/5 meters of rope. She used 1/4 of it for her clothesline. How long was the rope that she used for her clothesline?
Bar equal parts
The 10 m long bar comprises 4, 8, 3, and 6 equal parts. Express the length of one piece as a decimal number.
David 2
David poured orange juice into 7 cups. He poured 1/4 liter of orange juice into each cup. How many liters of orange juice did David pour altogether?
Practicing piano
Hoor spent 15 hours last week practicing piano. If 3/7 of the time was spent practicing warm-up routines, how much time did he spend practicing warm-up routines?
The temperature 24
The temperature at 04:00 was −3 °C. By 09:00, the temperature had risen by 8 °C. What was the temperature at 09:00?
The bike
A bike has a wheel circumference of 2 1/4 m. How far will it travel when the wheel turns 100 times?
Sun invisible minutes
The sunsets in the morning at 4:52 and sets at 19:37. How many minutes can't we see Sun in the sky?
Dwarf roll eating
The dwarves ate 42 rolls a week, seven times as many as Snow White. How many rolls did the dwarves eat with Snow White?
Lemonade bottle filling
The lemonade is filled into 1/3 liter bottles. How many bottles must be used to fill two hectoliters of lemonade?
Block edge sum
The block has a square base of 36 dm², and its height is 1/3 of the length of the base edge. Find the sum of the lengths of all edges of a block.
Nut mix weight
Mom bought a mixture of nuts. It contains 0.2 kg of hazelnuts. 1/4 kg of cashew nuts and 2/3 kg of peanuts. How much did the whole mix weigh?
Peter sleep time
Peter slept 635 minutes. He woke up at 7:15 in the morning. What time did he go to bed?

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