Round a 3-digit number to the closest multiple of a given 2-digit number. Identify the multiples of the 2-digit number that are on either side of the 3-digit number. Determine the which of the multiples has the smallest difference to the 3-digit number
A. Divide round numbers by powers of 10
B. Divide by factoring out powers of 10 from the divisor
C. Divide multi-digit round numbers mentally
D. List the multiples of a given 2-digit round number
E. Round a 3-digit number to the nearest multiple of a given 2-digit round number (Level 1)
G. Estimate a quotient by finding the nearest multiple
H. Estimate a quotient of a multi-digit division equation (Level 1)
I. Estimate a quotient of a multi-digit division equation (Level 2)