299 blown-up balloons; possible explanation: fi rst I found
the number of heart-shaped balloons, 5 × 14 = 70. Next,
I added that number to the number of round balloons
and long balloons, 70 + 144 + 108 = 322 balloons
in all. Last, I subtracted the number of burst balloons,
so 322 – 23 = 299 balloons left.
