KS1.Y1.N.AS – Number - addition and subtraction
Pupils should be taught to:
KS1.Y1.N.AS.2 – Represent and use number bonds and related subtraction facts within 20
Samples: Subtract from 10 (losing acorns). Subtraction Using Counters. Subtract single digit numbers.
KS1.Y1.N.AS.3 – Add and subtract one-digit and two-digit numbers to 20, including 0
Samples: Adding within 5 - activity 1. Add on to 5. Add single digit numbers. Addition to 20. Add three numbers - each under 6.
KS1.Y2.N.AS – Number - addition and subtraction
Pupils should be taught to:
KS1.Y2.N.AS.3 – Add and subtract numbers using concrete objects, pictorial representations, and mentally, including:
KS1.Y2.N.AS.3.a: a two-digit number and 1s
Samples: 'Adding On' single digit numbers - Blocks as visual cues. Subtract single digits with a missing number.
Number and place value
ACMNA015 – Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts
Samples: Add on to 5. Add on to 10. Addition to 20. Make 10. Add three numbers - each under 6.
Number and place value
ACMNA029 – Explore the connection between addition and subtraction
Samples: Make 10. Addition to 20. Add three numbers - each under 6. Single digit addition with a missing number.
ACMNA030 – Solve simple addition and subtraction problems using a range of efficient mental and written strategies
Samples: Adding multiples of 10. Subtract single digit numbers. Adding multiples of 10. Subtract from 10.
Patterns and algebra
ACMNA036 – Solve problems by using number sentences for addition or subtraction
Samples: Adding multiples of 10. Subtract single digit numbers. Adding multiples of 10. Subtract from 10.
Number and place value
ACMNA055 – Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation
Samples: Addition to 20. Add three numbers - each under 6. Single digit addition with a missing number.
4.NA.1 – Apply basic addition and subtraction facts, simple multiplication facts, and knowledge of place value and symmetry to:
4.NA.1.a – Combine or partition whole numbers
Samples: Counting to 100 on a number line: Activity 1. Make 10. Addition to 20. Add three numbers - each under 6.
5.NA.1 – Apply additive and simple multiplicative strategies and knowledge of symmetry to:
5.NA.1.a – Combine or partition whole numbers
Samples: Place value - four digit numbers. Place Values. Addition of three digit numbers. Add on numbers under 10.
Mathematics
K.OA.2 – Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
Samples: Add on to 5. Add on to 10. Subtraction with visual cues: Activity 1. Addition to 20. Make 10.
Mathematics
1.OA.1 – 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 for the unknown number to represent the problem. (See Glossary, Table 1. http://www.corestandards.org/the-standards/mathematics/glossary/glossary/ )
Samples: Add on to 10. Adding to 10 with visual cues - problems. Subtract from 10 (losing acorns).
Mathematics
1.OA.6 – 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 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Samples: Addition to 20. Subtract single digit numbers. Single digit addition: Activity 1. Make 10. Single digit subtraction.
Mathematics
2.OA.2 – Fluently add and subtract within 20 using mental strategies. (See standard 1.OA.6 for a list of mental strategies.) By end of Grade 2, know from memory all sums of two one-digit numbers.
Samples: Addition to 20. Single digit addition with a missing number. Subtract single digit numbers.