№ 1 · Arithmetic · Grade 5
Arithmetic problems for Grade 5
10 problems with worked solutions.
№ 2 · Arithmetic · Grade 5
Two warning lights flash every 12 and 18 seconds. Now they blinked simultaneously. In how many seconds will this happen again for the first time?
№ 3 · Arithmetic · Grade 5
Solve the equation: three times an unknown number plus 17 equals 68. What is the unknown number?
№ 4 · Arithmetic · Grade 5
The book has 240 pages. On the first day, they read a third of the book, and on the second, a quarter of the remaining pages. How many pages are left after two days?
№ 5 · Arithmetic · Grade 5
One craftsperson can complete an order in 6 hours, and another can complete it in 3 hours. How many hours will they need to complete the same order if they work together at constant rates?
№ 6 · Arithmetic · Grade 5
How many different natural factors does the number 360 have, including 1 and the number 360 itself?
№ 7 · Arithmetic · Grade 5
In a group, the ratio of boys to girls is 3:5. There are 32 children altogether. How many are girls?
№ 8 · Arithmetic · Grade 5
A warehouse has 640 parts. Inspectors selected 12.5 percent of them. How many parts were selected?
№ 9 · Arithmetic · Grade 5
The number 500 was increased by 20 percent, and then the result was decreased by 20 percent. What number was obtained?
№ 10 · Arithmetic · Grade 5