Mathematical Part-Whole Models and Calculations Analysis
Explore a series of mathematical equations, part-whole models, and calculation analysis to enhance your understanding of basic arithmetic concepts. Dive into exercises to identify correct and incorrect calculations, with accompanying visual aids for a comprehensive learning experience.
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Presentation Transcript
1) 3 1 = 3 2 = 3 3 = 3 4 = 3 10 = 3 20 = 3 30 = 3 40 = 2) Complete the part-whole models 23 34 3 3) 3 + 3 + 3 = 5 + 4 = 10 1 = 5 + 2 + 2 = 5 + 1 + 1 + 1 + 1 =
1) 3 1 = 3 2 = 3 3 = 3 4 = 3 10 = 3 20 = 3 30 = 3 40 = 3 6 9 12 30 60 90 120 2) Complete the part-whole models 23 30 34 3 4 20 3) 3 + 3 + 3 = 5 + 4 = 10 1 = 5 + 2 + 2 = 5 + 1 + 1 + 1 + 1 = 9 9 9 9 9
23 4 = 23 4 92 20 4 80 3 4 12 Tens Tens Ones Ones Remember that multiplication is commutative
34 3 = 34 3 102 30 3 90 4 3 12 Tens Tens Ones Ones Have a think
Have a go at question 1 on the worksheet
= 126 42 3 10 3 10 3 10 3 10 3 2 3 30 60 90 120 126 42 3
= 141 47 3 Have a think 2 3 1 3 10 3 10 3 10 3 10 3 1 3 5 3 141 135 30 60 90 120 = 147 49 3 10 3 10 3 10 3 10 3 3 3 3 33 3 10 3 1 3 5 34 3 30 60 90 120 147
Have a go at questions 2 - 3 on the worksheet
Can you find which of Tinys calculations are correct and which are incorrect? 32 6 6 2 = 12 6 30 = 180 32 6 6 3 = 18 6 20 = 120 32 6 = 138 32 6 = 192 42 3 40 3 = 120 2 3 = 6 42 3 = 126 54 5 54 5 50 5 = 200 4 5 = 20 54 5 = 220 54 5 = 270 Have a think 50 5 = 250 4 5 = 20
Have a go at the rest of the worksheet
