Summative Review

Mima rounded a one-decimal number. The number is 5 when rounded to the nearest whole number.

What is her number?

• 3.9

• 4.4

• 5.6

• 5.4

A triangle that has two equal lengths and two equal angles is called (a)  

Fill in the missing numbers.

-2 , ..... , ....., ....., 10

(a)  

To find median of a data, we have to (a)   the data first.

Here is a data of a math scores in a class.
80, 70, 75, 80, 60, 70, 80, 90, 90

• 60

• 70

• 80

• 90

What is the 8th square number?

(a)  

There are five one-digit numbers.

Median of the numbers is 8.

Mode of the numbers is 8.

Nine is the only odd number.

Write set of the numbers.

(a)  

The value of digit 8 in 70.86

• 8 tens

• 8 tenths

• 0.08

• 0.8

10 packs of chocolate cost $1.6

Lily celebrated her birthday and she invited 100 friends.

How much did it cost for 100 packs of chocolate?

• $160

• $1600

• $16

• $0.16

Answer explanation

10 packs = $1.6

100 packs = ?

Look at the clue, 10 packs become 100 packs, so you multiply by 10.

1.6 x 10 (move the dot one time to the right) = 1.6

......... + 3.8 = 10

• 7.2

• 6.1

• 6.2

• 2.8

Answer explanation

.... + 3.8 = 10

*last digit total 10. so 2+8 is 10

*rest digit total 9. so 6+3 = 9

the answer is 6.2