Addition with 2 digit numbers
Mental Addition of 2-Digit Numbers - Maths with Mum
Students demonstrate addition strategies with up to four two-digit numbers either with or without regrouping. Problems may be written in a story problem format to help develop a stronger understanding of larger numbers and their values. Interactive whiteboards and document cameras may also be used to model and justify student thinking.
[DOCX File]Number and Algebra: Stage 2 - Additive thinking
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1.NBT.C.4. Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models (e.g. base ten blocks) or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
[DOCX File]Unit 4 (Topics 8-9): Adding and Subtraction Two-Digit Numbers
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Grade 2. Math Cluster. Math Standard. Mathematic Practices. Use place value understanding and properties of operations to add and subtract. 2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.. Make sense of …
[DOCX File]2.NBT.6/NUMBERS AND OPERATIONS IN BASE TEN
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applies knowledge of 10 as a unit to add and subtract 2 two-digit numbers . manipulates tens and ones flexibly for addition and subtraction (to add 45 and 37, adds the tens on 45 … 55, 65, 75, then partitions the 7 into 5 and 2, adds the 5 to make 80 and 2 more to make 82)
[DOCX File]Math 2, 4th ed. Lesson Plan Overview
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Add 2 digit numbers without regrouping --vertically and horizontally. Solve addition and subtraction problems containing 4-digit numerals with regrouping in the 1’s, 10’s, and 100’s. Add a positive and negative number. Use a variety of methods and strategies to estimate, solve and check addition of multi-digit with regrouping
[DOCX File]Work with addition and subtraction equations
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add and subtract one-digit and two-digit numbers to 20, including zero. solve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7 = – 9. Year 2. solve problems with addition and subtraction:
[DOCX File]Chapters 7–9: Addition and subtraction
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Chapter 5 • Addition: 2-Digit Numbers. 37. 75–78. 73–74. Practice addition facts. Write the expanded form of 2-digit numbers. Add 2-digit numbers without renaming. Estimate the sum by rounding to the nearest ten. Connect math to the biblical worldview truth that God wants us …
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