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Primary 4 | Maths
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Can help me please. Thank you so much
Date Posted: 3 years ago
Views: 395
Grouping :
Put every three 50¢ coins and one 20¢ coin into a group.
3 × 50¢ = 150¢ = $1.50
20¢ = $0.20
Total value in one group = $0.20 + $1.50
= $1.70
Number of groups that can be formed with $8.50
= $8.50 ÷ $1.70
= 5
Number of 50¢ coins
= Five groups × three 50¢ coins per group.
= 5 × 3
= 15
Put every three 50¢ coins and one 20¢ coin into a group.
3 × 50¢ = 150¢ = $1.50
20¢ = $0.20
Total value in one group = $0.20 + $1.50
= $1.70
Number of groups that can be formed with $8.50
= $8.50 ÷ $1.70
= 5
Number of 50¢ coins
= Five groups × three 50¢ coins per group.
= 5 × 3
= 15
See 1 Answer
done
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Please use guess and check to find a number of 20cent and 50cent coins that will add up to $8.50. Remember to make everything the same units, here we make everything from cents to dollars.
Date Posted:
3 years ago
The better method and more efficient way for this question is the grouping concept.
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