PIMSO 2023 - Mathematics - Grade 2 - National Round

How many odd numbers are there greater than 1 but less than 100?

Ben has ten pieces of candy. Ben gives two candies to Bang and now Bang has three more pieces of candy than Ben. How many pieces of candy did Bang have originally?

Evaluate: $4+7+10+13+16+19+22+25+28+31$

If $x+x+20+x=41$, what is $x$?

What is ½ of ⅓ of 84?

If $a+b=24$, and $a=b+b+b$, what is $a$?

What is the next number in the sequence $2,4,6,8,10,\ldots$?

What is the sum of all the even numbers from 1 to 10?

What is the greatest number that can be made with the digits 2, 3, 5, and 7, and no digit is repeated?

In a case, if 10 pencils are broken, there are 15 pencils that are not broken. How many pencils are in the box originally?

In a farm, there are 20 chickens and 12 rabbits. How many more chickens are there than rabbits?

How many triangles are there?

What is the quotient of 120 and 6?

What is the greatest even number that is less than 30?

What is $3/4$ of 12?

Solve for $x$: $x+5=12$

Simplify: $15-(6-3)+2$

What is the equivalent, simplified fraction of $4/8$?

How many sides does the following figure have?

Which has more sides, a nonagon or a dodecagon?