5. x – 3.2 = 7.5 6. 5x = 22.5 7. x ÷ 2 = 9.3
A rectangle has length 8 cm and width 5 cm. Find its perimeter. hl-tmaryn-ryadyat-alsf-althany-mtwst-sfhh-12
Align decimals: 7.25 + 3.80 = 11.05 Answer: 11.05 not just test computation.
At first glance, page 12 seems like standard middle-school math drills — equations, fractions, and a few word problems. But here’s what makes it interesting: the exercises are structured to catch careless mistakes, not just test computation. hl-tmaryn-ryadyat-alsf-althany-mtwst-sfhh-12