Estimation and rounding
I can use my knowledge of rounding to routinely estimate the answer to a problem then, after calculating, decide if my answer is reasonable, sharing my solution with others.
MNU 2-01a
Number and number processes
Having determined which calculations are needed, I can solve problems involving whole numbers using a range of methods, sharing my approaches and solutions with others.
MNU 2-03a
I have explored the contexts in which problems involving decimal fractions occur and can solve related problems using a variety of methods.
MNU 2-03b
Adding two 3-digit numbers (without regrouping) – https://classroom.thenational.academy/lessons/adding-two-3-digit-numbers-without-regrouping-c4uk8r
Subtracting two 3-digit numbers (without regrouping) – https://classroom.thenational.academy/lessons/subtracting-two-3-digit-numbers-without-regrouping-60r3cc
Adding two 3-digit numbers (regrouping in one column) – https://classroom.thenational.academy/lessons/adding-two-3-digit-numbers-regrouping-in-one-column-cmt64e
Adding two 3-digit numbers (regrouping in multiple columns) – https://classroom.thenational.academy/lessons/adding-two-3-digit-numbers-regrouping-in-multiple-columns-74u3ce
Subtracting 3-digit numbers (regrouping tens to ones) – https://classroom.thenational.academy/lessons/subtracting-3-digit-numbers-regrouping-tens-to-ones-cgwk8t
Subtracting 3-digit numbers (regrouping hundreds to tens) – https://classroom.thenational.academy/lessons/subtracting-3-digit-numbers-regrouping-hundreds-to-tens-c9h66t
Subtracting 3-digit numbers (regrouping in multiple columns) – https://classroom.thenational.academy/lessons/subtracting-3-digit-numbers-regrouping-in-multiple-columns-74rkce
Solving addition and subtraction word problems – https://classroom.thenational.academy/lessons/solving-addition-and-subtraction-word-problems-6mw3ct
Solving word problems with unknown values – https://classroom.thenational.academy/lessons/solving-word-problems-with-unknown-values-cgtpcd
Deriving addition and subtraction facts – https://classroom.thenational.academy/lessons/deriving-addition-and-subtraction-facts-6xk30t
Deriving addition and subtraction facts by using given calculations – https://classroom.thenational.academy/lessons/deriving-addition-and-subtraction-facts-by-using-given-calculations-cru3jd
Choosing appropriate addition strategies – https://classroom.thenational.academy/lessons/choosing-appropriate-addition-strategies-6wwkad
Choosing appropriate subtraction strategies – https://classroom.thenational.academy/lessons/choosing-appropriate-subtraction-strategies-6nh3gc
Applying and consolidating: Related number facts and appropriate strategies – https://classroom.thenational.academy/lessons/applying-and-consolidating-related-number-facts-and-appropriate-strategies-6dgkct
Adding using the column method – https://classroom.thenational.academy/lessons/adding-using-the-column-method-cmw3cc
Adding using the column method, when multiple columns require regrouping – https://classroom.thenational.academy/lessons/adding-using-the-column-method-when-multiple-columns-require-regrouping-cmwpcr
Subtracting using the column method – https://classroom.thenational.academy/lessons/subtracting-using-the-column-method-6mr38r
Subtracting using the column method, when multiple columns require regrouping – https://classroom.thenational.academy/lessons/subtracting-using-the-column-method-when-multiple-columns-require-regrouping-6xh34c
Subtracting from multiples of 1000 – https://classroom.thenational.academy/lessons/subtracting-from-multiples-of-1000-64rkjr
Applying and consolidating: Column method for addition and subtraction – https://classroom.thenational.academy/lessons/applying-and-consolidating-column-method-for-addition-and-subtraction-cgvpcc
Representing one-step word problems – https://classroom.thenational.academy/lessons/representing-one-step-word-problems-6mt3ad
Representing comparison word problems – https://classroom.thenational.academy/lessons/representing-comparison-word-problems-c9hkgr
Solving two-step word problems – https://classroom.thenational.academy/lessons/solving-two-step-word-problems-69k3gr
Applying and consolidating: Word problems and bar models – https://classroom.thenational.academy/lessons/applying-and-consolidating-word-problems-and-bar-models-70rkcc
Using and explaining addition strategies – https://classroom.thenational.academy/lessons/using-and-explaining-addition-strategies-60t6ce
Using and explaining addition and subtraction strategies – https://classroom.thenational.academy/lessons/using-and-explaining-addition-and-subtraction-strategies-6hk38c
Adding and subtracting using multiples of 10, 100, 1000, 10 000 and 100 000 – https://classroom.thenational.academy/lessons/adding-and-subtracting-using-multiples-of-10-100-1000-10-000-and-100-000-60upcc
Adding and subtracting using the ’round and adjust’ strategy – https://classroom.thenational.academy/lessons/adding-and-subtracting-using-the-round-and-adjust-strategy-chk64e
Adding and subtracting using partitioning – https://classroom.thenational.academy/lessons/adding-and-subtracting-using-partitioning-61h3cd
Rounding to estimate – https://classroom.thenational.academy/lessons/rounding-to-estimate-ccr62d
Adding using the column method – https://classroom.thenational.academy/lessons/adding-using-the-column-method-6wt64c
Subtracting using the column method – https://classroom.thenational.academy/lessons/subtracting-using-the-column-method-6xj32d
Problem solving using the column method – https://classroom.thenational.academy/lessons/problem-solving-using-the-column-method-c8up6c
Solving multi-step addition and subtraction problems – https://classroom.thenational.academy/lessons/solving-multi-step-addition-and-subtraction-problems-ctk66d
Deriving decimal addition and subtraction facts – https://classroom.thenational.academy/lessons/deriving-decimal-addition-and-subtraction-facts-6gu30c
Adding decimals – https://classroom.thenational.academy/lessons/adding-decimals-70t62r
Subtracting decimals – https://classroom.thenational.academy/lessons/subtracting-decimals-69jpat
Applying mental calculation strategies to adding and subtracting decimals – https://classroom.thenational.academy/lessons/applying-mental-calculation-strategies-to-adding-and-subtracting-decimals-cgr3ce
Solving problems with decimals using addition and subtraction – https://classroom.thenational.academy/lessons/solving-problems-with-decimals-using-addition-and-subtraction-6gu6ad
Addition and Subtraction – https://whiterosemaths.com/homelearning/year-5/week-4/
Addition and Subtraction – https://whiterosemaths.com/homelearning/year-5/week-5/
