Partitioning 2-digit numbers

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Presentation transcript:

Partitioning 2-digit numbers 63 = 60 + 2 + 1 So when we partition 2-digit numbers we we split them up in to their tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 2-digit numbers 63 = 50 + 10 + 3 So when we partition 2-digit numbers we we split them up in to their tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 2-digit numbers 63 = 30 + 30 + 3 So when we partition 2-digit numbers we we split them up in to their tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 3-digit numbers 271 = 200 + 50 + 20 + 1 So when we partition 3-digit numbers we we split them up in to their hundreds, tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 3-digit numbers 271 = 100 + 100 + 50 + 20 + 1 So when we partition 3-digit numbers we we split them up in to their hundreds, tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 3-digit numbers 271 = 100 + 100 + 40 + 30 + 1 So when we partition 3-digit numbers we we split them up in to their hundreds, tens and units © 2013 www.SaveTeachersSundays.com

Partitioning 4-digit numbers We partition 4-digit numbers in to their thousands, hundreds, ten and units 4,975 = 4,000 + 900 + 70 + 5 4,975 = 2,000 + 2,000 + 900 + 70 + 5 4,975 = 4,000 + 500 + 400 + 50 + 20 + 5 © 2013 www.SaveTeachersSundays.com

Tenths Units tenths Units can be split in to tenths 10 tenths make 1 unit Units tenths © 2013 www.SaveTeachersSundays.com

Hundredths Units hundredths Units can also be split in to hundredths 100 hundredths make 1 unit Units hundredths © 2013 www.SaveTeachersSundays.com

Numbers with decimal places Numbers with decimal follows the same rules The further to the left a number is, the more it is worth U . t h th © 2013 www.SaveTeachersSundays.com

Zeros after the last digit In numbers with decimal places, zeros after the last number do not change the value of the number The numbers in the same colours below have the same value as each other, despite the extra zeros on the end 8 8.0 2 2.00 5.1 5.10 7.35 7.350000 © 2013 www.SaveTeachersSundays.com

Partitioning numbers with decimal places 2.3 = 1 + 1 + 0.3 © 2013 www.SaveTeachersSundays.com

Partitioning numbers with decimal places 2.3 = 2 + 0.2 + 0.1 © 2013 www.SaveTeachersSundays.com

Partitioning numbers with decimal places 0.752 = 0.5 + 0.2 + 0.5 + 0.02 So when we partition numbers with decimal places we split them up in to their units, tenths, hundredths and thousandths © 2013 www.SaveTeachersSundays.com

Partitioning numbers with decimal places 0.752 = 0.7 + 0.3 + 0.2 + 0.01 + 0.01 So when we partition numbers with decimal places we split them up in to their units, tenths, hundredths and thousandths © 2013 www.SaveTeachersSundays.com

Partitioning numbers with decimal places When we partition numbers with decimal places we split them up in to their units, tenths, hundredths and thousandths 4.975 = 4 + 0.9 + 0.07 + 0.005 4.975 = 2 + 2 + 0.9 + 0.07 + 0.005 4.975 = 4 + 0.5 + 0.4 + 0.05 + 0.02 + 0.005 © 2013 www.SaveTeachersSundays.com