Problem Solving

A case of $24$ water bottles is divided equally into $4$ boxes. If you take $2$ bottles out of one box, how many bottles are left in that specific box?

A student bought $2$ packs of glue sticks, with $4$ sticks in each pack. If they used $3$ glue sticks for a project, how many are left?

A train has $3$ cars, and each car has $10$ seats. If $5$ seats are empty in total, how many people are sitting on the train?

A traveler has $15$ postcards from France and $10$ from Spain. If they send $5$ postcards to friends, how many postcards do they have left?

A toy shop has $5$ shelves, and each shelf has $15$ dolls. If they sell $20$ dolls and then receive a new shipment of $10$ dolls, how many dolls are in the shop now?

A bakery makes $48$ cookies. They sell $12$ cookies in the morning. The remaining cookies are put into boxes of $6$ cookies each. How many boxes do they fill?

There are $18$ birds on a tree. First, $5$ birds fly away, and then $9$ more birds arrive. A few minutes later, half of all the birds on the tree fly away. How many birds are left on the tree?

A construction worker finds that $4$ identical bricks have a total mass of $18$ kg. What would be the total mass of $7$ of these bricks?

Oranges are sold in bags of $10$ for $\$3.50$ or individually for $\$0.45$ each. How much money do you save by buying $20$ oranges in bags rather than individually?

A pair of shoes originally costs $\$60$. They are on sale with a $20\%$ discount. Additionally, a customer has a coupon for $\$5$ off the sale price. What is the final price of the shoes?

What is the rule for the pattern $10, 30, 50, 70, \dots$?

What is the total of $4 + 4 + 4$?

To solve for $x$ in $x + 5 = 15$, what should you do?

What is $100 - 50$?

A bag contains 3 red balls and 5 blue balls. If I add 2 red balls, what fraction of the balls in the bag are now red?

If you subtract any even number from another even number, the result will always be:

There are 48 children going on a field trip. Each small van can carry 7 children. What is the minimum number of vans needed to take everyone?

A pattern of shapes goes: Circle, Square, Triangle, Star, Circle, Square... What is the 50th shape in the pattern?

If you double a number and then subtract 10, you get the same result as adding 5 to the number. What is the number?

How many multiples of 7 are there between 1 and 100?

Find the missing number in this sequence: $10, 30, 50, \text{?}, 90$.

What is the rule for this sequence: $21, 23, 25, 27, \dots$?

What is the next number in the sequence: $60, 50, 40, 30, \dots$?

Find the next number in this sequence: $9, 12, 15, 18, \dots$?

What is the next number in the sequence: $10, 21, 32, 43, \dots$?

What is the missing number: $1, 8, 27, \_, 125$? (Hint: Cubes)

A sequence starts at $0.5$ and the rule is 'Double the number'. What is the $5^{th}$ term?

A pattern of dots grows as $1, 5, 13, 25, 41, \dots$ ($+4, +8, +12, +16$). What is the $7^{th}$ term?

A sequence follows the rule $100 - n^2$. What is the $9^{th}$ term?

Find the next term in the sequence: $1, 2, 6, 24, 120, \dots$