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Add and Subtract in Your Head
Add the tens and then the ones, record jumps on open number lines, use a friendly number such as 40 for 39, count up to find a difference, then choose a strategy for a quick mixed set.
About this worksheet
- Learning goal
- I can use place value strategies to add and subtract within 100 in my head.
- Level
- Level 3 of 5 (Core)
- Learning path
- Grade 2 addition and subtraction, step 4 of 5
- Teaching style
- Guided practice. Clear steps: an example, then practice that builds to independence.
- Ages and thinking
- Ages 7–8 · Apply · British spelling
- Includes
- Worksheet, clear instructions and an answer key for grown-ups
- US standards
- CCSS 2.NBT.B.5
- National Curriculum in England
- Year 2 · Mathematics: addition and subtraction (mental methods with two-digit numbers)
- Australian Curriculum v9
- Year 2 · Mathematics: AC9M2N04
- AC9M2N04 add and subtract one- and two-digit numbers
- Pages
- 2
- Rating
- —
- Downloads
- 0
- Grades
- 2nd Grade
- File
- —