№ 1 · Logic · Grade 1
Logic math problems
14 problems with worked solutions.
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№ 2 · Logic · Grade 1
There are 17 children in a line. Dasha is fourth from the end. What is her position from the start?
№ 3 · Logic · Grade 1
Olya had 24 stickers. She moved 5 stickers from one album to another. How many stickers does Olya have altogether now?
№ 4 · Logic · Grade 2
Ira, Oleg, and Maxim are standing in a line. Ira is ahead of Oleg, and Oleg is ahead of Maxim. What is Oleg’s position?
№ 5 · Logic · Grade 2
A two-digit number is intended. In the tens place there is a digit 3, and the sum of its digits is 7. What number is intended?
№ 6 · Logic · Grade 2
Leo is 9 years old. Nina is 3 years older than Leo, and Tim is 2 years younger than Nina. How old is Tim?
№ 7 · Logic · Grade 3
In a two-digit number, the tens digit is 3 more than the units digit, and the sum of the digits is 11. What number is this?
№ 8 · Logic · Grade 3
In a three-digit number, the hundreds digit is 4. The tens digit is 2 times smaller, and the ones digit is 3 greater than the tens digit. What is the number?
№ 9 · Logic · Grade 4
The sum of three consecutive natural numbers is 72. What is the largest of these three numbers?
№ 10 · Logic · Grade 6
Find the smallest positive integer that leaves a remainder of 2 when divided by 5 and a remainder of 4 when divided by 7.
№ 11 · Logic · Grade 6
Two ribbons of 84 and 126 centimeters must be cut into equal pieces of the greatest possible length with no remainder. How long is each piece?
№ 12 · Logic · Grade 6
One beacon flashes every 18 seconds and another every 24 seconds. They flash together now. After how many seconds will they flash together again?
№ 13 · Logic · Grade 6
There are chickens and rabbits in a yard. Altogether there are 18 heads and 50 legs. How many rabbits are there?
№ 14 · Logic · Grade 6