SEAMO X 2019 — Paper A — Grade 1–2

The three triangles use nine matchsticks. Rearrange the matchsticks to form five triangles. Draw the arrangement.

Find the sum of all boxed digits in $\overline{\square2\square\square}\times6=\overline{\square404}$.

Twenty coins are either $50$ cents or $1$ dollar, totalling $17.50$ dollars. How many are $50$-cent coins?

How many triangles are there altogether?

How many circles are there altogether in the five patterns?

According to the balances, one circle has the same mass as what fraction of one square?

On Children’s Day a teacher gives $7$ sweets to each of $9$ students and has $8$ sweets left. How many sweets did she have initially?

Find the missing centre number in the third triangle.

Evaluate $1+11+21+31+41+9+19+29+39+49$.

Find the two missing numbers in the four grids, from left to right.

Alex ties pairs of strings with knots. He has $12$ strings. (a) How many knots join them into one straight line? (b) How many join them into a circle?

Find $a$ and $b$ in the circle, giving them in that order.

One bear weighs the same as how many ducks?

Which of the five figures is the odd one out?

Find the numbers for a large hexagon containing a small hexagon and for a large square containing a small circle.

Given $\overline{AB4}-\overline{CD}=C$, find $A+B+C+D$.

Every four empty Coke cans can be exchanged for one full can. Twelve children want one can each. At least how many cans must they buy altogether?

Which figure comes next?

Each of three circles carries three numbered squares. Select one number from each circle to sum to $100$. Give two selections.

Today is Saturday. What weekday is thirty days from today?