Speed · Mental math
Math Haraka
Fast fingers, faster brain. Haraka haraka!
Math Haraka is Karibu's pure-speed game. Real-life Kenyan sums — shillings, change, percentages — fly at you on a tight timer. It's the ultimate quick-fire brain warm-up, and the leaderboard rewards the fastest minds in the country.
Per question12 sec
StyleRapid fire
PlaySolo · Online

Fastest solve today: 6.2 sec
1
Start the round
Sums appear one after another on a fast 12-second timer.
2
Solve in your head
Everyday Kenyan math — prices, change, percentages, times tables.
3
Tap before time runs out
Answer quickly for a speed bonus; a wrong tap ends your run.
4
Chase the top time
Stack correct answers back-to-back and climb the speed leaderboard.
Sample questions
How fast can you solve these?
Q1
Solve fast: KES 250 × 4 = ?
AKES 850
KES 1,000
CKES 1,200
DKES 950
Q2
Solve fast: 15% of 200 = ?
A25
30
C35
D20
Q3
Solve fast: 144 ÷ 12 = ?
A11
12
C14
D16
Why players love it
A brain gym in your pocket
Real-life sums
Shillings, change and percentages you'd actually use at the duka.
Pure adrenaline
The tight timer makes every round genuinely heart-racing.
Sharpen mental math
A few rounds a day and your quick calculation gets noticeably sharper.
Race the nation
Speed leaderboards crown the fastest minds in Kenya.
More Karibu games
See all →How fast is your brain?
Free to play in your browser — no download needed. Karibu!