Report

What is addition? •How else can we say add? •Do numbers get bigger or smaller? •Can we add more than one number together? •When might you use addition? On a whiteboard… We biggest are going to setTout aUcalculation in a column. The Now, we’re number ready to always goesWe are going to do 35 + 12 add… 3 5 on the top! + 1 2 On your boards, write it down so that your 4 looks 7the units, calculation like this… First, we add together and write the What’s our total in the unitsanswer? column… Next, we add together the tens, then we write the total in the tens column… Let’s try another… youifsetyou’re out 47 + 11? Let’sCan see right! Does it look like this… Which Have a go column do at adding weunits… add the first? T U 4 + 1 5 7 1 8 Which Have a go column do at adding wetens… add the second? Let’s get tougher… This time, we’re going to try H T U! On your boards, show me how you think you’d lay out 321 + 123… H T U 3 2 + 1 2 4 4 1 3 4 Fantastic- let’s practice! Head over to your tables and have a go at the questions on your sheets… Remember… • You MUST only write one digit in each box • You MUST make sure your digits are underneath the correct place value. • You MUST show what calculation you are doing with a + symbol • You MUST leave a line between each question • You MUST leave a line between your place values and calculation. Right- let’s step it up… Sometimes you add H numbers T U which give a total of 10 or more… 1 We know that we can only have 9 units before it 3 6 4 becomes a ten, or 9 tens before it becomes a 2 2 7before it becomes a hundred, or+9 hundreds 5 9and1 so on… thousand Let’s practice one more… H T U 1 1 2 7 6 + 5 4 5 8 2 1