3.3 the student adds and subtracts to solve meaningful problems involving whole numbers | ||
2 | 3 | 4 |
2.3C select addition and subtraction to solve problems using two-digit numbers, whether or not regrouping is necessary | 3.3B select addition or subtraction and use the operation to solve problems involving whole numbers through 999 (problem solving incorporating all process standards) | 4.3A use addition and subtraction to solve problems involving whole numbers |
Select addition and use operation to solve problems involving whole numbers through 999 Select subtraction use operation to solve problems involving whole numbers through 999 | ||
Activities:
- Sketch base 10 blocks beside the number to show the process of regrouping
- Show that the value of a number does not change when the tens and ones change during regrouping
- Using money helps students to see how to regroup with a "0"
- Use sales ads for "Holiday Shopping"
- Work on choosing the correct operation within word problems
- While reading a word problem, students can sketch the action
- Estimate the answer before beginning
- Sorting a word problem by the operation
Anchor Stations:
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