Math Week 6 Review

Place Value

Standard Form – uses only numbers (we see this in everyday living)

Expanded Form – sum of the value of each digit

Hundred Ten Thousands Thousands Thousands, Hundreds Tens Ones 5 0 6, , How many Thousands or Hundreds in a number:

Rounding Use a number line to round: Find the mid-point. MP Round 28 to the nearest is between 20 and is closer to 30 (comes after the mid-point). So, 28 rounds to 30. MP Round 545 to the nearest is between 500 and comes before the mid-point and is closer to 500. So, 545 rounds to 500 MP Round 3500 to the nearest 1,000. 3,500 is between 3,000 and 4,000. 3,500 is the mid-point and therefore is closer to 4,000. So, 3,500 rounds to 4,000.

Compare/ordering numbers

Fractions: 5959 Numerator: how many are being described Denominator: how many pieces make a whole piece or a whole set How many marbles are yellow? What fraction is shaded?

Fractions: Comparing unlike fractions using fraction bars.

When comparing fractions always look at the denominator first. If denominators are the same – look at the numerator to compare < < Fractions with unlike denominators – look at the figures

Adding and subtracting like denominator fractions: = = 5858

Fractions on a number line…. 1.Count the spaces to know the denominator 2.Then write fractions under each mark on the number line 3.Now you are ready to identify a point on the number line