Subtraction - practice for 12 year olds - page 36 of 37
Number of problems found: 723
- The star
Find the area of the shaded part of the square with a side of 22 cm. - Annulus
Two concentric circles form an annulus of a width of 10 cm. The radius of the smaller circle is 20 cm. Calculate the area of the annulus. - Plums
In the bag was to total 136 plums. Igor took 3 plums, and Mary took 4/7 from the rest. How many plums remained in the bag? - Stock
Enterprise sold 7/12 of its products to foreign markets, and 2/5 of the remainder was sold at home. How many % of the products are still in stock?
- Clock Tower
What angle is between hands-on Clock Tower when it shows 17 hours and 35 minutes? - Square and circle
Into the square is an inscribed circle with a diameter of 10 cm. What is the difference between circumference square and circle? - Mrs XY
Mrs. Novak is employed. In January 2015, the gross income reached € 1348. Insurance is a 323.52 euro and income tax 153.67 euros. Employer precipitated Mrs. Novak in recent clashes € 115, of which 57 euros for the savings account, and 58 euros for repayme - Cupcakes
In a bowl were some cupcakes. Janka ate one-third, and Danka ate one-quarter of the cupcakes. a) How many cookies ate together? b) How many cookies remain in a bowl? Write the results as a decimal number and notepad as a fraction. - Christmas
Exactly after 114 hours, we sit down at the Christmas Eve table. What day and what time was it when Dad said this sentence? They sit at the Christmas Eve table exactly at the 18-o'clock (6 pm).
- Complementary angles
Two angles are complementary. If one angle measures 10°, what is the measure of the second angle? - Flowerbed 2
Around the square flower bed in a park is a sidewalk about 2 m wide. The area of this sidewalk is 243 m². What is the area of the flowerbed? - Triangle radians
The size of two internal angles of a triangle ABC is α=6/18π and β=7/18π. Calculate the size of the third angle. - Garden
The rectangular garden is 72 m long and 25 m wide. Calculate by how many m² its area will be reduced if it is surrounded by an ornamental fence 50 cm wide. - Eggs
Mother bought from neighbors 39 domestic eggs. Her neighbor got back €4.54 from €10. How many euros get back from 20 banknote if she buys 94 eggs from a neighbor?
- Chocholate
The table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 19 squares. We must chocolate broke into individual squares. How many times have we broken it to get only individual squares? It is not permitted to bre - It is rectangular?
The size of two of the angles in a triangle is α=110°, β=40°. Is it a right triangle? - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - Opposite numbers
Calculate opposite numbers (additive inverse) to given ones: - Unknown x
If we add to the unknown number 21, then divide by 6 and then subtract 51, we get back an unknown number. What is this unknown number?
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