Page 74 - NUMINO Challenge_A2

Problem solving Key Points

1 Susan has 38 chocolate bars and Mike has 50 The difference is
chocolate bars. In order for Susan and Mike to twice the number of
have the same number of chocolate bars, how chocolate bars Mike
many chocolate bars should Mike give Susan? has to give Susan.

2 Sophie gave Amy the same number of chocolate Before Amy gave 1
bars that Amy already had. Amy then gave 1 chocolate bar back
chocolate bar back to Sophie. In the end, they to Sophie, Amy had
each had 19 bars. How many chocolate bars did 20 chocolate bars
Sophie have at the start? and Sophie had 18
chocolate bars.

71Communication