Addition
40+20
60
29-17
12
Holly has 10 cookies and Yuna takes 3 cookies. How many cookies does Holly have left over? (Answer with units!)
7 Cookies
10+17
Solve using VERTICAL FORM
10
+ 17
--------
27
110+66
176
526-185
341
Ja'Mirrion and Andy are making a tower with blocks. Ja'Mirrion uses 30 blocks. Andy adds 25 blocks. How many blocks does the tower have altogether? (Include units!)
55 Blocks
100-44
Solve using place value/base 10 blocks!
56
H T O
779 + 220
999
530-250
280
Matty and Evolette played rock-paper-scissors. Matty won 30 games. Evolette won 18 more games. How many games did Evolette win? (Include units)
48 games
263+48
Solve using the ARROW WAY
+40 +8
263->303>311
311
770+202
972
625-186
439
Everett makes 20 cars. Moana makes 6 less cars than Everett.
How many cars did Moana make?
How many cars do Everett and Moana have altogether?
A. 14 cars
B. 34 cars
240+ ___ = 350
Solve using tape diagrams
Hint:
------------
----- ------
-------------350-------------
------240------- ----110----
110
437+351
788
657-283
374
I made 20 sandwiches for my friends. My friends and I ate 7 sandwiches.
How many sandwiches do I have leftover?
Oh, no! I dropped 4 of those leftover sandwiches. How many sandwiches do I have now?
A. 13 sandwiches
B. 9 sandwiches
250-150
Solve using 2 strategies AND explain what makes your strategies "efficient"
100