Find the value of
$5$5 hours $10$10 minutes $+$+ $20$20 minutes
$\editable{}$ hours $\editable{}$ minutes
Find the value of
$11$11 hours $16$16 minutes $-$− $5$5 hours
Find the value of
$3$3 hours $3$3 minutes $+$+ $3$3 hours $29$29 minutes
Find the value of
$3$3 hours $20$20 minutes - $2$2 hours $10$10 minutes.