# Numbers And Arithmetic

# Goals

# Step 1

IRB1.class 1.0.class

# Step 2

IRB1 + 2 1.0 + 2.0 1 + 2.0

# Step 3

IRB2 - 1 2.0 - 1.0 2.0 - 1

# Step 4

IRB2 * 3 2.0 * 3 2.0 * 3.0

# Step 5

IRB4 / 2 8 / 2 6 / 4 6 / 4.0

# Step 6

IRB4 / 0

# Challenge(s)

What is the first number? > 2 What is the second number? > 4 The sum is 6

# Next Step:

Go on to Booleans

Back to Input And Output