Partial Sums
23+14 is the same as
A. 20+20 +3+4= or B. 20+10+3+4=
B 20+10+3+4= 37
17+__= 27
10
Mrs. Martin baked 12 cookies on Monday and 20 cookies on Tuesday. On Wednesday her husband ate 10 of her cookies. How many does she have left?
22 cookies
25+10+10=
45
In which of these equation do you need to regroup?
A. 14+64= B. 42+29=
C. 66+33=
B. 42+29=
20 + 30 +7+3= is the same as
A. 27+33= B. 23+33=
C. 27+37=
A. 27+33=
15+___=35
20
Mrs. Amato bought a bag with 30 treats. She gave Boomer 5 and Charlie 8. How many treats does she have left?
17 treats
17+20+13=
50
Use regrouping to find the answer to this math equation
36+ 27=
61
Which equation matches 45+28 using the partial sums method.
A. 40+5+20=
B. 40+20+5+8=
C. 45+45+28+28=
D. 48+10 +10=
B
32+____= 45
13
Miss Gashler bought Gus 17 race cars for his birthday and 7 dump trucks. He left 5 at his Grandma's house. How many does he still have?
19
23+9+11=
43
Use these base ten blocks to regroup and find the answer.
lllll..... + ll.........
55 + 29=
84
Use partial sums to figure out how many children voted for their favorite food. (You can use scrap paper or your white board
What is your favorite food?
Pizza-17 children Tacos- 5 children
Hamburger- 23 children Chicken- 15 children
60 children
56+____= 88
32
Mrs. Guarino's sons had 6 soccer balls, 8 baseballs, and 2 volleyballs at the park. When they got home they only had 13 balls. How many did they leave at the park?
3 balls
42+15+32=
89
Which 2 equations are the same as 47+28=?
A. 20+20+20+20=
B. 40+20+15=
C. 60+7+8=
D. 20+30+40+5+8=
B and D
Use any strategy to solve this problem.
Zach has 32 colored pencils. Tara has 15 more colored pencils than Zach. Vince has 12 more colored pencils than Tara.
How many colored pencils does Vince have?
Vince has 59 colored pencils
58+___= 93
35
Ms. Silverstein ate 10 chicken nuggets on Saturday, 6 chicken nuggets on Monday, 8 chicken nuggets on Tuesday, and 14 chicken nuggets on Wednesday. Ms. Silverstein had a belly ache from eating _____ chicken nuggets.
38 chicken nuggets.
34+31+19=
84
Which 2 equations require regrouping to solve?
A. 23+45=
B. 47+28=
C. 45+45=
D. 13+64=
A and D