Fill in the blanks with units (Eg 1 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have 70 marbles.
Adam has 50 more marbles than Bryan.
- Number of marbles that Adam has = _____
- Number of marbles that Bryan has = _____
- Total number of marbles = _____
- 1u = _____
Choose the person who has less marbles to be 1 u.
Adam has 50 more marbles than Bryan.
So, Bryan has less marbles.
(a)
Number of marbles that Adam has = 1 u + 50
(b)
Number of marbles that Bryan has = 1 u
(c)
Total number of marbles
= 1 u + 50 + 1 u
= 2 u + 50
(d)
Total number of marbles = 70
2 u + 50 = 70
2 u = 70 - 50 = 20
1u = 20 ÷ 2 = 10
Answer(s): (a) 1 u + 50 or 50 + 1 u; (b) 1u; (c) 2 u + 50 or 50 + 2 u; (d) 10