Welcome to Grade Five

Welcome to Grade Five

Math

Notes to Unit 3 Test:

1 - Patterns - Related Facts/Factors

2 - halving and doubling
3 - Multiplying and multiples of 10.
4 - Estimating products - close and easy.
5 - Mental math - halving and doubling
15 x 7
10 x 7
5 x 7

14 x 5
7 x 10 - Halving and doubling

198 x 5
200 x 5 = 1000 (2 x 5)
1000 - 10 = 990

6 - Multiplying 2 Digit Numbers
Draw a diagram
Expanded form
23 x 32
(20 x 30) + (20 x 2) + (3 x 30) + (3 x 2)
600 + 40 + 90 + 6
= 736

7 - Estimating Quotients to Solve Problems -
675 / 8 =
640 / 8 = 80 720 / 8 = 90
8 - Dividing 3 Digit numbers by 1 digit numbers.
Strategies:
  • Base 10 blocks/drawings
  • Repeated Subtraction
  • Place Value division

9 - Same as 8

10 - Multistep Problems

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