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Grade 2 Math · World 6: Thousand Tower · Level 54
Taking Away with Blocks to 1,000
485 − 162 with blocks.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 54
- Let's take away with big numbers: 485 minus 162. Start with 485 in blocks.
- 162 is 1 hundred, 6 tens, and 2 ones. Tap to take them away!
- 3 hundreds, 2 tens, and 3 ones are left. 485 minus 162 is 323!
- Try 352 minus 127. There aren't enough ones to take away 7, so break a ten first. Then take away 1 hundred, 2 tens, and 7 ones.
- 2 hundreds, 2 tens, and 5 ones are left: 225. Breaking a ten works with big numbers too!
Georgia's K-12 Mathematics Standards:
- 2.NR.2 — Apply multiple part-whole strategies, properties of operations and place value understanding to solve real-life, mathematical problems involving addition and subtraction within 1,000.