+
45 + 40 =
85
Use the take from ten strategy to solve.
14-8=
6
Show the make a ten strategy to solve.
27+5=
32
Use the take from 10 strategy to solve.
16-9=
7
24+70
Explain your reasoning.
94
96-40
Explain your reasoning
56
a. Ben's dad gave him 8 seashells to start his collection. He found 27 more at the beach. How many seashells does Ben have now?
Ben has 35 seashells now.
Use the make a ten strategy to solve.
7+54 =
61
Use the take from 10 strategy to solve.
72-8=
64
b. Grace has 50 seashells and gives away 8. How many seashells does Grace have now?
50-8 = 42
Grace has 42 seashells now.
Use the make a ten strategy to solve.
38+7
45
Use the take from 10 strategy to solve
59-7
52
Carlos gave 9 crayons to Maria. He started with 53 crayons. How many crayons does Carlos have now?
53-9=44
Carlos has 44 crayons now.