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A
19 – F
CTIVITY
RACTION
1. Press
/
to go to the Category Selection
ON
MODE
Menu.
2. Press
,
,
to start Activity 19. An equation
1
9
ENTER
consisting of mixed fractions appears. Part of one of
the fractions is missing.
3. Figure out the number that makes the equation true;
type the number. Ô
A
20 – P
CTIVITY
ERCENTAGES
1. Press
/
to go to the Category Selection
ON
MODE
Menu.
2. Press
,
,
to start Activity 20. A percentage
2
0
ENTER
or a decimal appears.
3. If a percentage appears, type in the decimal
corresponding to that percentage. If a decimal
appears, type in the percentage corresponding to
that decimal. Ô
A
21 – A
CTIVITY
LGEBRA
Some prior knowledge of algebra is helpful.
1. Press
/
to go to the Category Selection
ON
MODE
Menu.
2. Press
,
,
to start Activity 21. An equation
2
1
ENTER
with an unknown value (
3. Figure out the value of
equation. Type the value and press
A
22 – F
CTIVITY
ACTOR
1. Press
/
to go to the Category Selection
ON
MODE
Menu.
2. Press
twice. Press
2
laptop asks you either Lowest Common Multiple
(LCM) or Highest Common Factor (HCF) questions.
In an HCF question,
the top of the screen and
In an LCM question,
the top of the screen and
3. Find the LCM or HCF of the numbers and type it. Ô
) appears.
X
to solve the algebraic
X
. Ô
ENTER
& M
ULTIPLES
to start Activity 22. The
ENTER
you see two or three numbers at
HCF
below them.
you see two or three numbers at
LCM
below them.
Ô NOTE Ô
Activity 19 — Fraction
You have two tries to answer the
question.
Activity 20 — Percentages
The laptop tells you if your
answer is correct. You have two
tries for each question.
Activity 21 — Algebra
You have two tries for each
question.
Activity 22 — Factors &
Multiples
You have two tries for each
question.
9
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