Mental Maths 2

6000-5700

• 400
• 100
• 500
• 300

900×90

• 61000

• 81000

• 71000

• 51000

50×80

• 6500
• 5400
• 5000
• 4000

There are 14 birds on a tree. All but 6 flew away. How many birds are left on the tree?

• 7
• 3
• 8
• 6

Listen to this sequence: 0.9, 1.1, 1.3.  Which number comes next?

• 1.2
• 1.3
• 1.4
• 1.5

What is 34 hundredths as a decimal?

• 34.34
• 3.4
• 3.04
• 0.34

I am thinking of a number.  I double it.  The answer I get is 640.  What number am I thinking of?

• 32
• 64
• 320
• 1280

What is 30% of 80?

• 8
• 16
• 20
• 24

What is 20% of 60?

• 3
• 6
• 12
• 30

What is 100% of 92?

• 920
• 9.2
• 0.92
• 92