A poster to show subtraction strategy - counting back on a number line.
Use this poster when teaching students the subtraction strategy of counting back on a number line.
A poster to show subtraction strategy - counting back on a number line.
Use this poster when teaching students the subtraction strategy of counting back on a number line.
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol...
Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 ...
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - ...
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 = [ ]; 3 + [ ] = 7; and 5 = [ ] - 3;
Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10;
Explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences; and
Add up to four two-digit numbers and subtract two-digit numbers using mental strategies and algorithms based on knowledge of place value and properties of operations;
We create premium quality, downloadable teaching resources for primary/elementary school teachers that make classrooms buzz!
Would you like something changed or customised on this resource? While our team makes every effort to complete change suggestions, we can't guarantee that every change will be completed.
Did you spot an error on this resource? Please let us know and we will fix it shortly.
Are you having trouble downloading or viewing this resource? Please try the following steps:
If you are still having difficulty, please visit the Teach Starter Help Desk or contact us.
Engage your students with a whole class bingo game while using the counting-on strategy to add within 20.
Win the addition fact championship with a football-themed partner game!
Celebrate Presidents’ Day with a digital math and literacy activity deck for kindergarten and first grade.
Have fun with your Valentine’s Day Math practice with an addition color by number worksheet.
Practice making ten using ten frames with this fun memory game.
Practice the addition strategy of making ten with this math worksheet.
Begin from the larger number and count on to find the total with this worksheet.
Use this set of division posters in your classroom when teaching different mental math strategies.
Use this set of addition posters in your classroom when teaching different mental math strategies.
Use this set of subtraction posters in your classroom when teaching different mental math strategies.
0 Comments
Write a review to help other teachers and parents like yourself. If you'd like to request a change to this resource, or report an error, select the corresponding tab above.