Problem Solving

$5 + 4$

$5 \times 4$

$5 - 4$

$5 \div 4$

Addition

Subtraction

Multiplication

Division

$10 + 5$

$10 \times 5$

$10 \div 5$

$10 - 5$

$10$

$14$

$12$

$8$

$21$

$20$

$22$

$19$

$400$

$490$

$499$

$510$

Counting back $98$ times

Counting up from $98$ to $100$

Using a calculator only

Adding $100$ and $98$

$14$, by adding $12 + 2$

$24$, by doing $12 \times 2$

$20$, by doing $10 \times 2$

$12$, because it is one year

Because the ones digit ($7$) is $5$ or more

Because $47$ is closer to $40$

Because $50$ is a bigger number

Because all numbers round to $50$