Maths practice for 12-year-olds - page 89 of 362
Number of problems found: 7228
- Multiplication with fractions
Show the product using illustration. What is 2/4 of 23/8? show ¾ of 1 ½ 2 2/3 of 2 ½ ½ of 2 ½ 1 ½ of 2/3 - 5 times
Find an unknown number; if five times as large as 110 is 1/2 of what number? - Casserole 72634
The casserole with a volume of V = 4.5 l has a depth of h = 10 cm. Calculate its inside diameter. - Recommended 72614
There is information on the syrup bottle that it is recommended to dilute it in a ratio of 1:6. How much lemonade would we make if we bought a bottle of syrup with a volume of 0.5 l? - Arithmetic 72544
The arithmetic mean of two numbers is 12. The first number is 5. What is the value of the second number? - Centimeters 72534
Calculate the edge c and the surface S of a block if its volume is equal to 42 cubic centimeters, a = 6cm, b = 3.5cm, c =? - A turkey
Alana was cooking a turkey. It takes 4 1/2 hours to cook. She checks it every 20 min, 1/3 of the hour. How many times will she check it before it is cooked?
- Jojo ordered
Jojo ordered 36 cupcakes for the party. He ordered red velvet and vanilla cupcakes. ¾ of the cupcakes are vanilla. How many are red velvet? - A pie 6
There was 5/8 of a pie left in the fridge. Daniel ate 1/4 of the leftover pie. How much of the pie did he have? - A salt
There is 7/8 kilogram of salt in the kitchen. The mother used 2/15 of the salt when she was preparing dinner. How much salt did she use? - Add and subtract fractions Calculate: A) 6/14 + 1/14 = B) 1 2/5 + 2 1/5 = C) 2/13 + 5/13 + 7/13 = D) 2 1/10 + 0/10 = E) 3 + 10/11 = F) 2/3 + 4/3 G) 4 1/9 + 2 4/9 = H) 8 3/8 + 3 1/8 + 1 7/8 = I) 4/9 + 6 1/9 = J) 11/6 + 2 1/6 = K) 0 1/15 + 7/15 + 3 4/15 =
- Decimal places
How many decimal places would the product of 2.79 and 0.0043 have? - Add+subtract mixed numerals
What is the result when 3 ¼ + 2 ⅙ is subtracted from 4 ½ - 3 ¾ - Adding two fractions Find the missing fraction: 2/5 + 7/10 =
- There 20
There is 1/2 of a pizza left for four friends to share. What fraction of a pizza will each friend get to eat?
- Trapezoid 45
Trapezoid with: Area: 345 1/2 sq cm First base = 15 1/3 cm height= 4 1/5 cm What size is the second base? - Circumference 72414
Calculate the diagonal and the area of a square if its circumference is 10 centimeters. - Numbers 72404
How many numbers are less than 200, the digit sum of which is 6? - Surface 72394
The volume of the cube is 15625 cubic meters. Find the length of the edge and the surface of the cube. - Subtracting Fahrenheit
On a certain day, the high temperature in city A was 86°F. On the same day, the high temperature in city B was -24°F. What was the difference in temperature between city A and city B?
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