A
Beth baked 24 carrot muffins . She baked 18 apple muffins. How many muffins did Beth bake?
Label the bar model. Write a number sentence with a square for the missing number. Solve
24 18
42 42 muffins
24+18= ____
Carlos Has 23 red keys, 36 blue keys, and 44 green keys. How many keys does he have?
103 Keys
Mike sees 17 blue cars and 25 green cars. Write ALL ways you can use to find how many cars he sees.
17+25
25+17
Greater than 100?
51+92
Yes, 143
13-> _____ + ______
+26-> ______+______
______ _____________
_______+______=_______
13-> __10_ + __3__
+26-> __20__+__6___
______ _____________
___30___+__9__=___39__
Anna sees 16 shells on the beach, then she see 7 more. Which ways can you use to find how many shells Anna found?
a) 16-7
b) 16+7
c) 16+4+3
Solve
36+89=
125
Jerry has 53 pencils in one drawer. He has 27 pencils in another drawer.
Draw a picture or write to explain how to find the number of pencils in both drawers.
80 pencils
Greater than 100?
42+27
No, 69
38+55
93
There are 18 boys in the chorus and 9 girls. How many children are there in the chorus?
Did you regroup to find your answer?
27
Yes, because 8+9 is 17 so you carry the 1 to the tens place
Mandy has 26 baseball cards. 42 football cards, and 38 basketball cards. How many cards does she have?
106 cards
Lauren sees 14 birds. Her friend sees 7 birds. How many birds do Lauren and her friend see. Draw a quick pictures to solve. Write the sum.
21 birds
Greater than 100?
82+33=
Yes, 115
98+76+54+32
260
Jerry picked 16 red apples. He picked 27 green apples. How any apples did Jerry pick?
Label the bar model. Write a number sentence with a square for the missing number. Solve
16 27
43 43 muffins
16+27= ____
Maddie practices her violin 43 minutes, 32 minutes, 16 minutes, and 25 minutes. Write a number sentence to show the number of minutes Maddie practiced. Solve
43+32+16+25= 116
Which two sections make 78 seats?
Section A: 35 seats
Section B: 43 seats
Section C: 17 seats
Section A and Section B
Greater than 100?
62+14=
No, 76
36-> _____ + ______
+41-> ______+______
______ _____________
_______+______=_______
36-> __30_ + __6__
+41-> __40__+__1___
______ _____________
___70___+__7__=___77__
23+45+67+89=
224
12+38+90
140
Bag C: 34 marbles
Bag D: 23 marbles
Bag E: 45 marbles
Bag C and Bag E
Greater than 100?
77+12=
No, 89
How can you solve 30+67 using mental math
One way:
Turn 67 into 70 by adding 3 then add 70+30=100 take away 3 to get 97