158=___ + 106. What number will come in the blank to make the number sentence correct?

• 52

• 152

• 158

• 264

Solve 3n-6=21 . Find n

X exceeds by 7 can be expressed as

(-45)+(+56)+(-56)+(45)+12===

• 12

• 102

• 125

• none

The simplest form of 16/24 is: 

• 3/5

• 2/3

• 2/5

• 1/3

The underground part of the plant is called

• stem

• root

• leaf

Which of these equations does the diagram support?

• Oxygen + Water + Sunlight = Carbon dioxide + Glucose

• Glucose + Water + Sunlight = Carbon dioxide + Oxygen

• Water + Carbon dioxide + Sunlight = Glucose + Oxygen

• Carbon dioxide + Glucose = Sunlight + Water + Oxygen

find the sum -48 and +58

• +10

• -10

• 106

• none

The germination of a seed is which change

• Reversible change

• Irreversible change

Burning of a candle is which change ?

• Physical change

• Chemical change

• Biological change