Texas Math Models

Try “number line” or “4.5D”

Use the rule

forward and backward

G3–4

The rule is × 6. Now fill the gaps the table left.Pencils in PacksPacksPencils162123184247??54neither row was printed; the rule reaches bothforward, to find pencils7 × 6 = 42backward, to find packs54 ÷ 6 = 9the same rule, run the other waya missing pack count divides, because the rule multiplies

How this one works

How

to find pencils, multiply by 6. To find packs, divide by 6.

Best when

the table has a gap, or asks about a row it never showed.

seen one of these on a test? See it on a real question: TEKS 3.5E, finding the rule in a table.

The same problem, other ways