Mental Math

Grace's favourite programme starts at half past 4. The time NOW is ten past 4. How many minutes are left for the programme to start?

• 10 minutes

• 15 minutes

• 20 minutes

• 25 minutes

How many grams in 1 kg 200 g?

• 1020 g

• 1200 g

• 1120 g

Tags

CCSS.4.MD.A.2

Half a metre is equal to

• 50cm

• 5cm

• 15cm

• 75cm

Tags

CCSS.4.MD.A.1

Karl walks to his grandma's house every day. It is 1 km 10m there and back. How far does he walk in 1 week?

• 7170m

• 7070m

• 6890m

Tags

CCSS.4.MD.A.2

What is missing in the space?

(34 x 16) = (34 x 10) + (34 x ____)

• 34

• 6

• 10

• 16

Tags

CCSS.3.OA.B.5

How many interior angles are there in the hexagon?

• 10

• 8

• 6

• 4

Which of the following measures is an example of acute angle?

• 90^o

• 89^o

• 100^o

• 95^o

Tags

CCSS.4.G.A.1

six times a number is 360. What is the number?

• 600

• 60

• 2160

• 3600

Tags

CCSS.3.OA.B.6