Represent multiples of ten in an expression or an equation | Exit Quiz | Oak National Academy

Which expression is represented by the number shapes?

• 3 + 3 + 3

• 10 + 10 + 10

• 10 + 3

• 10 + 10 + 3

Answer explanation

There are three groups of 10 which is 10 + 10 + 10

Which equation is represented by the number shapes?

• 5 + 5 + 5 + 5 + 5 = 50

• 10 + 10 + 10 + 10 = 40

• 10 + 10 + 10 + 10 + 10 = 50

• 10 + 5 = 15

Answer explanation

There are five groups of 10 which is 50 and the equation is 10 + 10 + 10 + 10 + 10 = 50

Write an expression that is represented by this image of bundles of 10 straws. Remember to use the plus symbol +

(a)  

Answer explanation

The expression is 10 + 10 + 10 + 10 because there are four parts of 10

Write an equation that is represented by this image of bundles of 10 straws. Remember to use the plus symbol + and the = symbol.

(a)  

Answer explanation

The expression is 10 + 10 = 20 because there are two groups of 10 and the total or sum is 20

Mini erasers cost 10 p each and Izzy buys 9 erasers. How much does she spend? Which equation represents this problem?

• 10 + 9 = 19

• 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 90

Answer explanation

The problem is represented by 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 90 because there are 9 groups of 10 p which is equal to 90 p

Pens come in packets of 10 and Lucas buys 30 pens. How many packets has he bought? Select the equation that represents this problem.

• 10 + 30 = 40

• 10 + 10 + 10 = 30

• 10 + 10 + 10 + 10 = 30

Answer explanation

The problem is represented by 10 + 10 + 10 = 30 because there are 3 groups of 10