Addition - practice for 12 year olds - page 26 of 29
Number of problems found: 570
- Barrels
Peter has 42 barrels. One-sixth of them are filled with lemonade, one-third are filled with wine, and half are empty. Calculate how many barrels are with each filling. - Cuboid
The sum of the lengths of the three edges of the cuboid that originate from one vertex is 210 cm. The edge length ratio is 7: 5: 3. Calculate the length of the edges. - Afternoon 5922
Tractors plowed a field of 15 3/4 ha. Its plowed 3 1/3 ha in the morning, 2 5/6 ha in the afternoon, and 4 1/4 ha at night. How many hectares were left to plow the next day? - Three-quarters 5783
A crane loads goods onto the wagons of a freight train. Goods of the first type weigh two and three-quarter tons, goods of the second type two and a quarter tons, goods of the third type one and a half tons, goods of the fourth type three-quarters of a to
- Savings
Eva lent 1/3 of her savings to her brother, 1/2 of savings spent in the store, and 7 euros left. How much did she save? - Grandmother 5695
Franta spent 4 sixths of the money he got from his grandmother on a cassette with songs. With the help of a neighbor, he earned 2 sevenths of the amount he received from his grandmother. Express as a fraction what part of the money from his grandmother wa - Temperature 5655
Calculate the temperature difference if one temperature is 26 degrees and the other is -22 degrees Celsius. - Production 5609
The production plant fulfilled 1/4 of the monthly plan in the first 10 days of the month, 5/14 in the second decade, and 3/7 of the monthly plan in the remaining part of the month. Determine if the monthly plan has been met. - Difference 5436
Find two integers whose sum is less than their difference.
- Combine / add term
Combine like terms 4c+c-7c - Arrived 5365
The truck arrived in Brno at 6 pm, 14 minutes and 50 seconds. The journey took 5 hours, 17 minutes 20 seconds. What time did the truck go? - Interior designer
To make draperies, an interior designer needs 11 1/4 yards of material for the den and 8 1/2 yards for the living room. If material comes only in 20-yard bolts, how much will be left over after completing both draperies? - Brackets 2
Add parenthesis to make true: 5-2×6-4+2=5 - Numbers 5276
What is 2/3 of the sum of numbers (0.10) and (-5.3)?
- Calculate 5274
Calculate the second sum if you know that one sum is -124.6 and the resulting sum is (-200). - Difference 5269
Calculate the difference between the sum of the numbers 1.04 and 0.56 and the product of the numbers opposite to them. - Kristina 5267
It is 2 cm higher than the average height of the pupil in the class. Kristýna is missing up to an average height of 7 cm. How taller is Samo taller than Kristina? - Summands 5215
Divide the number into two summands, which are in the given ratio: a) 3, 11:4 b) 5.1 8:9 c) 1 7:3 d) 0.42 1:6 - Pizza 4
Marcus ate half pizza on Monday night. He then ate one-third of the remaining pizza on Tuesday. Which of the following expressions show how much pizza Marcus ate in total?
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Addition practice problems. Maths practice for 12-year-olds.