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 and subtracting 1-digit numbers to/from 3-digit numbers – https://classroom.thenational.academy/lessons/adding-and-subtracting-1-digit-numbers-tofrom-3-digit-numbers-68uk4e
Adding multiples of 10 to 3-digit numbers – https://classroom.thenational.academy/lessons/adding-multiples-of-10-to-3-digit-numbers-cgwp6d
Subtracting multiples of 10 from 3-digit numbers – https://classroom.thenational.academy/lessons/subtracting-multiples-of-10-from-3-digit-numbers-61k34t
Adding and subtracting multiples of 100 to/from 3-digit numbers – https://classroom.thenational.academy/lessons/adding-and-subtracting-multiples-of-100-tofrom-3-digit-numbers-crw62d
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
Applying rounding for estimating (adding) – https://classroom.thenational.academy/lessons/applying-rounding-for-estimating-adding-65j62r
Applying rounding for estimating (subtracting) – https://classroom.thenational.academy/lessons/applying-rounding-for-estimating-subtracting-64w34c
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
Adding and subtracting 1000 – https://classroom.thenational.academy/lessons/adding-and-subtracting-1000-6ctk2t
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
Addition and Subtraction – https://whiterosemaths.com/homelearning/year-4/week-5/
Addition and Subtraction – https://whiterosemaths.com/homelearning/year-4/week-6-number-addition-subtraction/
Addition and Subtraction – https://whiterosemaths.com/homelearning/year-4/week-7-number-addition-subtraction-2/
