Counting in hundredths LO Find fractions of amounts
- Slides: 20
Counting in hundredths…
LO: Find fractions of amounts. Success Criteria:
Dexter has used a bar model and counter to find ¼ of 12.
Did your bar model look something like this?
Amir uses a bar model and counters to find one quarter of 84. 84
Amir uses a bar model and counters to find one quarter of 84. 84
Which operation are we using when finding a fraction of an amount? How do we know how many equal groups do we need? Which part of the fraction tells us this? How does the bar model help us?
Which operation are we using when finding a fraction of an amount? DIVIDING How do we know how many equal groups do we need? Which part of the fraction tells us this? DENOMINATOR How does the bar model help us? HELPS TO VISUALISE AND CHECK WE HAVE EQUAL GROUPS
Find: a) 1/3 of 36 b) 1/3 of 45 c) 1/5 of 65
LO: Find fractions of amounts. Success Criteria:
LO: Find fractions of amounts. Success Criteria: - Divide by the denominator. - Multiply by the numerator. e. g. to find 5/6 of 12 1. Divide by the denominator 12÷ 6=2 2. Multiply by the numerator 2 x 5=10 So: 5/6 of 12 = 10.
Find: a) 2/3 of 18 b) 3/5 of 65 c) 7/9 of 18 Success Criteria: - Divide by the denominator. - Multiply by the numerator. e. g. to find 5/6 of 12 1. Divide by the denominator 12÷ 6=2 2. Multiply by the numerator 2 x 5=10 So: 5/6 of 12 = 10.
Extension: Whitney eats 3/8 of 240 g bar of chocolate. How many grams of chocolate has she eaten?
Plenary True or False? To find 3/8 of a number, divide by 3 and multiply by 8. Convince me!
Plenary True or False? To find 3/8 of a number, divide by 3 and multiply by 8. Convince me!
ANSWERS: Counting in hundredths…
ANSWERS: Find: a) 1/3 of 36 = 12 b) 1/3 of 45 = 15 c) 1/5 of 65 = 13
ANSWERS: Find: a) 2/3 of 18 = 12 b) 3/5 of 65 = 39 c) 7/9 of 18 = 14
- 16 hundredths
- Roots of decimals and fractions
- What is 56 hundredths written as a number
- 67 hundredths
- Ones tenths hundredths
- 4 or less let it rest 5 or more raise the score
- How many hundredths are in one whole
- How to teach tenths and hundredths
- 67 hundredths as a decimal
- 47 hundredths
- Two sevenths as a decimal
- Ten thousandth place
- Tens units tenths hundredths thousandths
- Fraction
- 11111 as a fraction
- Ones, tens, hundreds, thousands decimal
- What is 0·125zero point one two five as a fraction?
- What are the 5 steps in crime scene investigation
- Problem 8-3 extending amounts across the work sheet
- Talking about amounts
- Stoichiometry predicting amounts in reactions