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This Doubles Facts drill has 40 problems for Grade 2. Chess theme. Answer key included.
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Max races across the chessboard collecting golden pawns before the Black King captures them all!
Standard: CCSS.MATH.2.OA.B.2
Doubles-facts—knowing that 2+2=4, 3+3=6, 5+5=10—are among the most powerful mental math tools your child will develop in Grade 2. These facts form a foundation for faster addition, help students recognize patterns in numbers, and build confidence when they see a problem and instantly know the answer. At age 7 and 8, children's brains are wired to notice and remember patterns, making this the ideal time to anchor doubles into automatic memory. When a child fluently recalls doubles, they spend less mental energy on computation and more on problem-solving and understanding what math means. This frees up working memory for more complex tasks later, whether it's addition with larger numbers or even multiplication (which is really repeated doubles and other groups). Mastering doubles also gives children a genuine sense of accomplishment—they feel like mathematicians.
Many Grade 2 students confuse doubles with consecutive numbers, answering 4+4=8 correctly but then saying 4+5=9 without realizing it's one more than the double. Others reverse or mix up their facts mid-worksheet—they know 3+3=6 but later write 3+3=7, especially when tired or working quickly. Watch for students who count on their fingers for every double instead of retrieving it from memory; this signals the fact hasn't solidified yet. You'll also notice some children skip-count by ones rather than recognizing the double pattern immediately.
At dinner or during a car ride, play a quick verbal doubles game: say a number and ask your child to tell you the double. Start with smaller numbers (2, 3, 4) and celebrate instant answers. Once they're confident, introduce 'one more than a double'—say 'What's 6+6? Now what's 6+7?'—to show how doubles become a strategy. Keep it to two minutes so it stays fun and your child feels successful, not quizzed.