Math Calculation
Components of Calculations: (organization is also a component of calculations)
Addition Recognize the size and position of numbers Count on in ones, tens, hundreds, thousands, decimals Know number bonds to 10, 20, 100 and beyond Add multiples of 10 to any number Partition and recombine numbers (e.g. 57= 50 + 7) Bridge through the tens barrier
Subtraction Recognize the size and position of numbers Count back in ones, tens, hundreds, thousands, decimals Know number facts for all numbers to 10, 20, 100 and beyond Subtract multiples of 10 from any number Partition and recombine numbers (only split the number to be subtracted) Bridge through the tens barrier
Multiplication Recognize the size and position of numbers Count on in different steps 10s, 5s, 2s, 4s, 8s, 3s, 6s, 9s and 7s Double numbers up to 10 and beyond Recognize multiplication as repeated addition Quick recall of multiplication facts (times tables) Use known facts to derive associated facts (e.g. 2 x 4 = 8, so 20 x 4 = 80) Multiplying by 10, 100, 1000 and understanding the effect Multiplying by multiples of 10
Division Recognize the size and position of numbers Count back in different steps 2s, 5s, 10s, 100s, 1000s, decimals Halve numbers to 20 and beyond Recognize division as repeated subtraction Quick recall of division facts Use known facts to derive associated facts Divide by 10, 100, 1000 and understanding the effect Divide by multiples of 10
Information from: http://droxfordjunior.co.uk/wp-content/uploads/2014/01/Maths-caluculations-booklet.pdf
Addition Recognize the size and position of numbers Count on in ones, tens, hundreds, thousands, decimals Know number bonds to 10, 20, 100 and beyond Add multiples of 10 to any number Partition and recombine numbers (e.g. 57= 50 + 7) Bridge through the tens barrier
Subtraction Recognize the size and position of numbers Count back in ones, tens, hundreds, thousands, decimals Know number facts for all numbers to 10, 20, 100 and beyond Subtract multiples of 10 from any number Partition and recombine numbers (only split the number to be subtracted) Bridge through the tens barrier
Multiplication Recognize the size and position of numbers Count on in different steps 10s, 5s, 2s, 4s, 8s, 3s, 6s, 9s and 7s Double numbers up to 10 and beyond Recognize multiplication as repeated addition Quick recall of multiplication facts (times tables) Use known facts to derive associated facts (e.g. 2 x 4 = 8, so 20 x 4 = 80) Multiplying by 10, 100, 1000 and understanding the effect Multiplying by multiples of 10
Division Recognize the size and position of numbers Count back in different steps 2s, 5s, 10s, 100s, 1000s, decimals Halve numbers to 20 and beyond Recognize division as repeated subtraction Quick recall of division facts Use known facts to derive associated facts Divide by 10, 100, 1000 and understanding the effect Divide by multiples of 10
Information from: http://droxfordjunior.co.uk/wp-content/uploads/2014/01/Maths-caluculations-booklet.pdf