Transitioning from simple tables to two-digit mental math.
"If you have 147 apples, are you closer to 140 or 150?" rabochaia programma 3 klass programma 21 vek fgos matematika
Inside the city, Petya found a garden where flowers grew in . The Mayor needed to know how many seeds to buy for a rectangular plot that was 12 meters long and 4 meters wide . Petya used his distributive property trick: Transitioning from simple tables to two-digit mental math