Ages 10–11🧮 MathematicsBeing planted

Equations with Two Unknowns

Find pairs of numbers that satisfy an equation with two unknowns (e.g. find pairs (a, b) where a + b = 10 or 2a + b = 15)

A first look

This shelf is still being planted — the questions are being written and checked. Come back soon. A Skill needs at least 5 checked questions before it opens here.

Question 1 of 3

Sam is arranging stickers. For each set he uses 2 large stickers (c) and some small stickers (d) so that the total number of stickers in the set is 24. Which list shows three different whole‑number pairs (c, d) that make the equation 2c + d = 24 true?

Question 2 of 3

Which of the following lists three pairs of whole numbers (x, y) that satisfy the equation 2x + y = 20?

Question 3 of 3

Which of the following lists ALL whole-number pairs (a, b) that satisfy a + b = 12 with a > 0 and b > 0?

Be first to know when it opens

A free account shows every Skill on the map as it opens — and practises the 18 Algebra Skills that are ready today. Every student account needs a parent's email first.

Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.