Texas Math Models

Try “number line” or “4.5D”

Area model · break apart a factor

24 × 6 = 144 G3–G4

break each factor into its places, then add the parts 2-digit × 1-digit 2-digit × 2-digit 20 4 6 6 × 20 120 24 24 × 6 = 144 (6 × 20) + (6 × 4) 120 + 24 144 20 4 10 5 200 40 100 20 24 × 15 = 360 (10 × 20) + (5 × 20) + (10 × 4) + (5 × 4) 200 + 100 + 40 + 20 360

How this one works

How

break a factor into tens and ones, multiply each part, then add the parts.

Best when

a factor feels too big to multiply all at once.

seen one of these on a test? See it on a real question: TEKS 3.4K, one- and two-step problems, or TEKS 3.5B, writing the equation first.

The same problem, other ways