Representing numbers with letters

Three same triangles is equal to 15. How much is for one triangle.

• 5

• 3

• 15

• 1

Tags

CCSS.3.OA.A.3

Choose the wrong number sentence.

• a+b = 18

• 18-a = b

• a = 18 - b

• b = a - 18

Tags

CCSS.HSA.CED.A.3

Choose the incorrect statement.

• variables mean changing

• constant mean fix value.

• In x+y = 22 , x and y are constants

• In maths, we represent variables by letters

Tags

CCSS.6.EE.A.2B

What type of triangle is that?

• Equilateral triangle

• Scalene triangle

• Isosceles triangle

• None of them

Tags

CCSS.4.G.A.2

x is two less than y .

Choose the correct sentence linking with x , y and 2.

• x = 2 - y

• x = y -2

• y = 2 - x

• y = x - 2

Tags

CCSS.6.EE.C.9