Jim is 12cm taller than John. John is 139cm tall. Bob is 21cm shorter than Jim. How tall is Bob?
Jim has 20 apples and oranges. The number of apples in 4 times the number of oranges. How many apples does Jim have?
How many interger numbers between 200 and 300 are there for which the hundreds digit equals the sum of the other two digits?
A dozen pens cost 24.6 dollars. How much does each pen cost?
please post more exercises
An army unit prepares some rice for 200 people to eat in 30 days. After 10 days, the unit receives 50 more people. Ask how much rice left for the unit to eat in how many days? (each person's food level does not change)
Each of cars can take 8 people. How many cars are needed to take 124 people?
Tom has 1/3 pizza left in the fridge. He eats 1/4 of it for his breakfast. What fraction of the original pizza does he have left for lunch ?
Notice: you solve the problem step by step.
i will post some math problems for you every week.
tất cả các bạn nên đăng nhiều bài toán về các vấn đề về phần trăm