Maths practice for 9-year-olds - page 5 of 19
Number of problems found: 361
- Triangle from sticks
Bob the boulder has many sticks of lengths 3.5 and 7. He wants to form triangles, each of whose edges consists of exactly one stick. How many non-congruent triangles can be formed with the sticks? - A beauty
A beauty supply company has 53 liters of 5% hydrogen peroxide solution on hand. The company also has a nearly limitless amount of a solution that contains 35% hydrogen peroxide. How many liters of the 35% hydrogen peroxide solution should the company add - Four-digit 63154
In entry 85 * 0, replace the asterisk with a number to give the smallest possible four-digit number divisible by 4. - A baker 2
A baker mixed 12 teaspoons of yeast and 114 teaspoons of salt to make one dough. How much yeast and salt are needed to make three doughs?
- The temperature 22
The temperature in a room in the morning is 28°C. It rises by 9°C in the afternoon before dropping by 11°C at night. What is the temperature in the room at the end of the day? - James 5
James has a personal injury protection policy that covers each person in, on, around, or under his car for medical expenses. Each person can collect up to $50,000. James is involved in an accident, and three people are hurt. One person has $23,000 in medi - Brno-Jihlava 61404
The driver delivers goods from Brno to Jihlava and Olomouc. The road to Olomouc leads through Vyškov. The distance between Brno-Jihlava is 93 km, Brno-Vyskov 32 km, and Brno-Olomouc 78 km. How many kilometers is the road from Vyškov to Olomouc? How many k - The highest
This year, the highest temperature in the Philippines was 53°C in Dagupan City, Pangasinan, last May 14. while the lowest temperature recorded was 9°C in Baguio City last February 12. what is the difference between the two temperatures? - 4 digit number
I am a four-digit number. My thousand period has a first digit which is thrice the second digit, and the second digit is two more than the third digit. All the rest of the digits are zeros. What number am I?
- The car
The car travels at a speed of 75 km per hour. How many kilometers will it go in if it goes evenly in 3 hours? - Exchanged 59993
Lukáš and Laco exchanged stamps. Before the exchange, Lukáš had 25 more marks than Laco. After the exchange, he had more Laco marks. At least how many stamps does Laco receive from Lukáš? - A test
A test has 20 questions. The test takes away 1 point if the answer is incorrect. A student answered eight questions incorrectly. How many points did the student lose? - The freshman
The freshman was held at the activity center with 12567 seats. If people did not occupy 120 sets, how many seats are occupied? - Which 6
Which statement is correct about the product of two numbers, 423 and 78? A. Because 78 is greater than 1, the product of 423 and 78 is greater than 423. B. Because 78 is less than 1, the product of 423 and 78 is greater than 423. C. Because 78 is greater
- Birthday party 3
There were 50 children at the birthday party. If 35 of them were boys, how many were girls? - Pigs 3
Julie fed ten pigs a week and got paid Php 10.50 for each pig. How much money does she make in one week? - Photo album
The photo album has 40 pages. There is always one large photo on three pages, two smaller ones on five pages, and three photos on the other pages. How many photos are in the album in total? - Mother 8
The mother bought 2 kg of beef at P240 per kilo and 2 kg of chicken legs at P140 per kilo. She gave the meat vendor a P1000 bill. How much change did she get? - White balls
I have three white balls and five red balls in my pocket. How many balls do I have to remove from the bag to ensure the pulled-out ball is red?
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