Add and subtract three-digit numbers.
Add and Subtract to 1,000 lets second graders add and subtract hundreds, tens and ones, add 10 or 100 in their heads and solve bigger story problems. It brings together place value and regrouping into confident, flexible math.
Math course · Grade 2
Add and Subtract to 1,000 · Learning goals
Add and subtract hundreds, tens and ones, add 10 or 100 in your head, and solve bigger story problems.
Why it matters
Working with numbers up to 1,000 prepares kids for the multi-digit math of grade 3 and beyond.
Adding 10 or 100 in your head is a practical skill for counting money, points and distances.
Multi-step story problems teach kids to read carefully and plan before they calculate.
Inside Add and Subtract to 1,000
A short read-aloud lesson first, then hands-on games and a quiz to lock it in.
Step 1 · Lesson
A short read-aloud lesson in 4 steps, with pictures and worked examples.
Step 2 · Game
Add the hundreds, tens and ones. (8 problems)
Step 3 · Game
Add or subtract 10 or 100 in your head. (8 problems)
Step 4 · Game
Subtract place by place. (8 problems)
Step 5 · Game
Read, listen and solve. (6 problems)
Lesson preview
This is the real lesson text your child hears, read aloud by a friendly voice.
Add hundreds to hundreds, tens to tens and ones to ones. 234 + 152 = 386.
Adding 100 changes only the hundreds digit: 345 + 100 = 445.
Adding 10 changes the tens digit: 345 + 10 = 355.
Subtract the same way, place by place. 586 − 243 = 343.
For parents
Learning sticks best when kids use it in real life. Here are simple ideas from this course.
Plan a pretend road trip: one town is 245 miles away and the next is 130 more. Ask how far it is in total, and how much farther the second leg is.
Practice
Real questions from Add and Subtract to 1,000. Try them with your child, then tap to see the answer.
Question 1
375
Question 2
578
Question 3
500
The full course has 30 questions with instant feedback, stars and rewards. Create a free account to play them all.
Add and Subtract to 1,000 · Questions from parents
Add and Subtract to 1,000 is a grade 2 math course for kids ages 7–8. That is Year 3 maths in the UK and Year 2 in Australia. It also works well for review in the next grade, or as a challenge for a confident younger learner.
Add and subtract hundreds, tens and ones, add 10 or 100 in your head, and solve bigger story problems. Along the way they practice: Add Big Numbers; 10 More, 100 More; Subtract Big Numbers; Big Number Stories.
About 15 minutes in total, split into 4 short levels. Most kids finish it over two or three sessions. Progress is saved, so they can stop any time and pick up where they left off.
Add and Subtract to 1,000 is part of SkillBloom Premium, which unlocks every course in every subject. Each subject also has free courses, so your child can try SkillBloom before you decide.
No. Every lesson has a friendly read-aloud voice, questions are read aloud too, and the pictures help kids follow along. Confident readers can turn the voice off.
Yes. SkillBloom is built for homeschooling families. Kids work through lessons, games and quizzes on their own, and the parent dashboard shows what they finished and which skills need more practice. It works on phones, tablets and laptops.
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