Cody tried to multiply 30 x 40 by decomposing 30 and 40 into multiples of 10. His work is below 30 x 40 =(3 x 10)x (4x 10) Step 1 = (3 x 4) x (10 x 10) Step 2 = 12 x 100 Step 3 1,200 Step 4 Find Cody's mistake.

can you add an image ?

step-by-step explanation:

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24