$6: 13$ Sparx - Sebastian Krista MENU Bookwork code: J62 a) How many millimetres are there in 1 centimetre? b) How many millimeters are there in 7 centimetres? < Back Watch video Answer $>$ AA etfordacademy.sparxmaths.uk

Step 1 ：To find out how many millimeters are in 1 centimeter and 7 centimeters, we need to know the conversion factor between centimeters and millimeters. The conversion factor is 1 centimeter = 10 millimeters.

Step 2 ：For 1 centimeter: \(1 \times 10 = \boxed{10} \) millimeters.

Step 3 ：For 7 centimeters: \(7 \times 10 = \boxed{70} \) millimeters.