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Biblioteka

Open Up - Grade 6 - Mathematics - Unit 6 - Lesson 9

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Source: Open Up Resouces (Download for free at openupresources.org.)

Pitanje 1
1.

Select all the expressions that represent the area of the large, outer rectangle.

Pitanje 2
2.

Draw and label diagrams that show these two methods for calculating 19 * 50

First find 10 * 50 and then add 9 * 50.

Pitanje 3
3.

Draw and label diagrams that show these two methods for calculating 19 * 50

First find 20 * 50 and then take away 50.

Pitanje 4
4.

Complete each calculation using the distributive property.

98 * 24 = ?

(100 - 2) * 24 = ?

Pitanje 5
5.

Complete each calculation using the distributive property.

21 * 15 = ?

(20 + 1) * 15 = ?

Pitanje 6
6.

Complete each calculation using the distributive property.

0.51 * 40 = ?

(0.5 + 0.01) * 40 = ?

Pitanje 7
7.

A group of 8 friends go to the movies. A bag of popcorn costs $2.99. How much will it cost to get one bag of popcorn for each friend?

Pitanje 8
8.

120% of x is equal to 78.

Write an equation that shows the relationship of 120%, x, and 78.

Pitanje 9
9.

120% of x is equal to 78.

Find x.

Pitanje 10
10.

Kiran’s aunt is 17 years older than Kiran.

How old will Kiran’s aunt be when Kiran is: 15 years old?

Pitanje 11
11.

Kiran’s aunt is 17 years older than Kiran.

How old will Kiran’s aunt be when Kiran is: 30 years old?

Pitanje 12
12.

Kiran’s aunt is 17 years older than Kiran.

How old will Kiran’s aunt be when Kiran is: x years old?

Pitanje 13
13.

Kiran’s aunt is 17 years older than Kiran.

How old will Kiran be when his aunt is 60 years old?