Second grade is when math facts start to become automatic and numbers get bigger — up to 1,000. These free games mix fast fact practice within 20 with step-by-step puzzles for place value, carrying and borrowing, and two-step story problems, so kids build speed and understanding at the same time.
🎪 Eight more ways to practice the same facts: Vine Swing, Ice Cream Tower, Present Surprise, Ski Lift, Penalty Kicks, Sing-Along, Planet Hop and Crown Jewels.
What kids practice
Addition and subtraction facts within 20, from memory
Place value to 1,000: hundreds, tens and ones
Adding and subtracting 2-digit numbers, with carrying and borrowing
Two-step word problems — choosing what to do first
Try one together: 46 + 38, column by column
Ones first: 6 + 8 = 14.
Write the 4 and carry 1 ten to the tens column.
Tens: 4 + 3 + 1 (carried) = 8.
So 46 + 38 = 84.
Tips for parents and teachers
Ask “How do you know?” after an answer. Explaining builds understanding more than speed does.
Use real money: dimes and pennies are a perfect model of tens and ones.
If borrowing is confusing, play Tens Treehouse first — trading a bunch of 10 for 10 singles is exactly what borrowing is.
Matching school standards
These games line up with these Common Core State Standards for Mathematics:
2.OA.B.2 Fluently add and subtract within 20 using mental strategies; know all sums of two one-digit numbers from memory.
2.NBT.A.1 Understand the three digits of a three-digit number as hundreds, tens and ones.
2.NBT.B.5 Fluently add and subtract within 100 using place value.
2.OA.A.1 Solve one- and two-step word problems within 100.
Questions parents ask
What math should a 2nd grader know by the end of the year?
Typically: addition facts within 20 from memory, adding and subtracting within 100 (and within 1,000 with models), place value to 1,000, telling time, counting money, and one- and two-step word problems.
Is carrying and borrowing taught in 2nd grade?
Yes. Many schools call it regrouping. Second graders usually start with 2-digit numbers, which is exactly what Column Climb practices at this grade.