SEAMO 2019 — Paper A — Grade 1–2

How many triangles are in the figure?

Find the next number: $1,5,6,11,17,28,45,\square$.

Evaluate $(28+30+32+34+36)-(27+29+31+33+35)$.

Find the value of the circled star in the equations.

How many cubes are there altogether?

A farmer has $37$ ducks and geese, with $35$ more ducks than geese. How many geese must he add so that there are twice as many ducks as geese?

John builds a $46\text{ m}$ fence. On day $1$ he builds $10\text{ m}$, then $1\text{ m}$ less each succeeding day. How many days does he need to finish?

Following the links from left to right, in how many ways can SUGAR be spelled?

A box contains $7$ red, $9$ white and $3$ black balls. Without looking, at least how many balls must be drawn to guarantee a white ball?

Cassie is $12$th from the front and $5$th from the back of a queue. How many people are in the queue?

Find the missing number in the third diagram.

Eight years ago I was twice as old as my brother. He is now $14$. How old am I now?

Given $\overline{AB}+\overline{AB}+\overline{AB}=168$, find $A$.

Each shape represents a one-digit number. Find the crossed square.

Find $a+b+c+d$ in the number pyramid.

There are $20$ chickens and cows with $48$ legs altogether. How many more chickens than cows are there?

Find the $30$th number in the repeating sequence $1,4,7,9,1,4,7,9,\ldots$.

Jim buys $3$ erasers and $4$ pens for $5.35$ dollars. Pam buys $1$ eraser and $2$ pens for $2.35$ dollars. What does one eraser and one pen cost?

An operation is defined by $2\odot4=12$, $3\odot5=16$, $2\odot8=20$. Find $6\odot9$.

The digits $2,5,8$ form six two-digit numbers such as $25,28,\ldots$. Find the difference between the greatest and least.