Math Drills
Adding Length (Different Units)
B-1Word Problems

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What this worksheet covers
- Topic
- Length (cm, mm, m)
- Worksheet
- Addition (Different Units)
At least one of the two lengths is written in a pair of units. Pairs such as m with cm, or cm with mm, mean the large side is added to the large side and the small side to the small side. Bare equations appear, the same shapes turn up in word problems that describe a scene, and everything is kept inside a range where nothing overflows.
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Adding across the divide, and setting the cm figure and the mm figure down as one number, is the error to look for. A small side that has passed ten, or a hundred, is the mark of it. Where one of the lengths carries no small-side figure, the large sides alone get added and the work ends there.
Only the way the two lengths are written has changed; adding each side to its own kind is the routine held over from Addition (Same Units). These two lessons settle the adding, and in Addition (With Carrying) the small side runs over.
- m, cm (Word Problems)3 questions
- cm, mm (Word Problems)3 questions
Questions & answers
Problems and answers on this worksheet
These are the problems in “Length (cm, mm, m)”, shown with their answers.
(1)The length of the bed is 1m80cm, and the length of the table is 1m15cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 2m, 95cm
(2)In the art room, there is a tape that is 5m40cm and another that is 2m10cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 7m, 50cm
(3)In the handicraft room, there is a wire that is 3m55cm and another that is 5m40cm. Altogether, how many m and how many cm will it be? Answer □ □
Answer: 8m, 95cm
(4)In the workshop, there are two wires of 11cm6mm and 9cm3mm. Altogether, how long are they, in how many cm and how many mm? Answer □ □
Answer: 20cm, 9mm
(5)At the birthday party, there are two ribbons of 7cm4mm and 8cm2mm. Altogether, how long are they, in how many cm and how many mm? Answer □ □
Answer: 15cm, 6mm
(6)The width of the flag is 11cm2mm, and the height is 7cm5mm. Altogether, how long is it, in how many cm and how many mm? Answer □ □
Answer: 18cm, 7mm

























