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Continue the counting pattern:
15, 25, 35, 45, _____, _____, _____, _____
55, 65, 75, 85
Place the following numbers on the number line below: 35, 70, 90
_____l______l______l______l______l______l_____
20 ___ ___ 80 85 ___
_____l______l______l______l______l______l_____
20 35 70 80 85 90
21 + 15 + 43 =
79
David is 17 years old. Steven is 15 years older than David. How old is Steven? Solve the problem and explain your thinking.
32
A bakery sold some cupcakes before lunch time. After lunch 35 more cupcakes were sold. If 76 cupcakes were sold in all, how many cupcakes were sold before lunch? Use drawings and equations to show your thinking.
41
__________ , 36, _________
Ten less Ten more
26, 46
Place the following numbers on the number line below: 26, 72, 95
__________l_______________l___________ 45 75
____|______l____________|___l_________|__ 26 45 72 75 95
35 + 22 + 41 =
98
Karter scored 72 points in a video game. Kaitlyn scored 28 fewer points than Karter. How many points did Kaitlyn score? Use drawings and equations to solve your thinking.
44
Some cookies were served at a party. The guests ate 38 cookies. After the party, 54 cookies were left over. How many cookies were there when the party began? Use drawings and equations to show your thinking.
92
What number is 10 fewer than 89?
79
There are 24 dogs at the park. If 33 more dogs come, how many dogs will there be? Use a number line to show your thinking.
57
38 + 52 + 16 =
106
Alice solved the problem 35 + 25 by adding 30 + 20 + 5 + 5. Is Alice's strategy correct? Explain why or why not.
Yes.
Accept any reasonable explanation.
Some students came to the fall festival at school. 57 more students came to the festival. Now there are 83 students at the festival. How many students came to the fall festival at first? Use drawings and equations to show your thinking.
26
Continue the counting pattern:
22, 27, 32, 37, _____, _____, _____, _____
If the pattern continues, will the number 73 be a part of the pattern? Tell how you know.
42, 47, 52, 57
No, because the one's place will have a 2 or 7 in it.
Samantha rode her bike for 36 minutes on Monday and 42 minutes on Wednesday. How many minutes did she ride her bike both days? Use a number line to show your thinking.
78
Olivia has 11 cookies, Jose has 15 cookies, and Brittany has 19 cookies. How many cookies do they have in all?
45
10 + 47 = _______
Explain how you solved the problem.
57
We had 4 tens and add 1 more ten.
There were 62 students in the gym. Some students left. If there are 23 student left, how many students left the gym? Use drawings and equations to show your thinking.
39
Continue the counting pattern:
14, 24, 34, 44, _____, _____, _____, _____
If the pattern continues, will the number 104 be a part of the pattern? Tell how you know.
54, 64, 74, 84
Yes, because the ten's place will have a 4 in it.
Brian collected 59 Pokemon cards. His friend gave him 38 more cards. How many cards does Brian have now? Use a number line to show your thinking.
97
Jackson scored 13 points on a video game on his first try. He scored 24 points on his second try, and 36 points on the third try. How many points did he score in all?
73
Harriet solved the problem 95 - 32 = ______ by writing "I know that I need to add 3 to the 2 to make 5. And I need to add 60 to the 30 to make 90. The answer is 63. Is Harriet's strategy correct? Explain why or why not.
Yes.
Accept any reasonable explanation.
Henry read for 56 minutes on Thursday. Then on Saturday he read some more. He read for a total of 83 minutes both days. How many minutes did Henry read on Saturday? Use drawings and equations to show your thinking.
27