Subtraction
58 - 25 =
33
4 x (3 + 8) =
44
Which would give a better hit?
6 x 4 or 4 x 6
Rogelio has 36 Pokemon cards and wants to divide them equally among 4 friends. If you used the letter c for cards per friend, what would the number model be?
36 / 4 = c
73 - 48 =
25
18 / (5 - 3) =
9
Which would would give a better hit?
6 x 4 or 5 x 6
5 x 6
7 bags; 56 / 8 = b
865 - 744 =
121
4 x 5 + 7 =
27
Which would give a better hit?
8 x 8 or 7 x 9
8 x 8
Mr. Velazquez needs to buy 5 notebooks for each of his 3 daughters. How many notebooks does he need to buy in all? What is the number model if he used the letter n for the total of notebooks he needs to buy?
15 notebooks; 5 x 3 = n
963 - 468 =
495
6 + 2 X 4 =
14
1-24 is a single; 25-42 a double; 45-64 a triple; and 70-100 a home run. During the game, Tina rolled 6 x 7 and Sofia rolled 5 x 11. Who hit a double?
Sofia; 5 x 11 = 55
Eugenio planted 3 flower beds in his garden. Each flower bed measures 2 meters long by 4 meters wide. What is the total area of the 3 flower beds in Eugene’s garden? What number model could you use to find the answer?
24 square meters; 3 x (2 x 4) or (2 x 4) x 3 =
532 - 258
274
9 - 3 + 6 =
12
1-24 is a single; 25-42 a double; 45-64 a triple; and 70-100 a home run. During the game, Max rolled 7 x 6 and 7 x 4. Laura rolled 5 x 8 and 7 x 3. Who scored a point?
Max; The answers 42 and 28 are both doubles.
Maria and her cousin Jose are counting their coins. Maria has 25 coins. If Jose found 5 more coins to add to his existing collection, he would have double the number of coins Maria has. How many coins does Jose have?
45 because 45 + 5 = 50 and 2 x 25 = 50