Year’s 1 and 2 Maths Workshop Addition and subtraction

Place value to support addition and subtraction Year 1: Tens and Units Count, read and write numbers to 100 in numerals. Identify and represent numbers using objects and pictorial representations including the number line. Year 2: Thousands, Hundreds, Tens and Units Using some practical resources to support understanding (Dienes)

Year 1 Addition What Year 1 learn? Number bonds to 20. Add one-digit and two-digit numbers to 20 Writing calculations using add (+) equals (=) signs Solve one-step number problems How? Through using practical resources. Counting on from a starting number Combine and increase numbers, counting forwards. The total will get bigger. Vocabulary: Addition, add, plus, make, more, total, altogether, put together, more than

Year 1 Addition – examples

Year 2 addition It begins to move away from using physical resources. We will use an empty number line. We will move onto start using the column method. Vocabulary:Addition, add, plus, make, more, total, altogether, more than

Maths Activity:

Year 1 Subtraction What Year 1 learn? Number bonds to 20 – their related subtraction facts e.g = 10, 10 – 3 = 7, 10 – 7 = 3. Subtract one-digit and two-digit numbers to 20 Writing calculations using subtract (-) and equals (=) signs Solve one-step number problems How? Through using practical resources. Counting backwards from a starting number The total will get smaller, always start from the bigger number. Vocabulary: Subtract, take away, distance between, less than, equals.

Year 2 subtraction Moving away from using physical resources. Using a 100 square or number line Using an empty number line Two different methods: Counting on Counting back

Subtraction Activity:

Word Problems We use RUCSAC to give us a routine to answer them. We have started using Singapore Bar method to help visualise the question. s_addition_subtraction.htmlhttp:// s_addition_subtraction.html Word problems involving addition, subtract, multiplication and division in the Year 2 SATS.

Word Problems

Mathematical Challenges