Lesson 2 Compare Number Sentences 2019.pdf

lesson-2-compare-number-sentences-2019.pdf
Preview of Lesson 2 Compare number sentences 2019.pdf
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Summary

Mo has 7 sweets (4 blue + 3 pink) and Rosie has 9 sweets (4 blue + 5 pink), so Rosie has more sweets.
The bar models for 3 + 6 = 9 and 8 + 1 = 9 show that both calculations give the same answer, another calculation is 7 + 2 = 9.
For 9 + 3 and 9 + 4, 9 + 3 < 9 + 4.
Comparing number sentences:
a) 3 + 5 < 3 + 9
b) 7 + 2 = 4 + 2 + 3 or 7 + 2 > 4 + 2
c) 10 + 5 > 9 + 6
For subtraction:
9 - 3 > 9 - 4.
Comparing number sentences:
a) 20 - 5 > 20 - 6
b) 17 - 4 > 13 - 4
c) 11 - 3 > 12 - 4
Addition completions:
a) 4 + 1 = 3 + 2
b) 14 + 1 = 13 + 2
c) 9 + 11 = 8 + 12
d) 10 + 9 = 8 + 11 = 12 + 7
Teddy knows the missing number without calculating because the numbers are the same distance from 10, the missing number is 8.

Description

Mo has 7 sweets (4 blue + 3 pink) and Rosie has 9 sweets (4 blue + 5 pink), so Rosie has more sweets.

Technical Information

  • File Format: PDF
  • File Size: 1.48 MB
  • Pages: 2
  • Language: EN
  • Total Downloads: 121
  • Last Updated: 1 month ago

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