18 questions
If the base-ten blocks shown are to be divided into 7 equal groups, what should be done as the first step?
Exchange 7 ten rods for 70 unit cubes.
Exchange the 8 ten rods for 80 unit cubes.
Exchange the 8 ten rods and 4 unit cubes for 1 hundred flat.
Exchange 1 ten rod for 10 unit cubes.