Finding Lengths Part1
First an ant walked 10 cm, then 14 cm, then 11 cm, then 16 cm. How far did the ant walk in all? Include units in your answer.
51 cm
Write 2 different equations with a sum of 12.
Answers will vary.
Ex: 6+6=12, 5+7=12, 11+1=12, 10+2=12
Fill in the missing number in this equation.
9+7=___
16
Katie drew a line that was 13 cm long. She decided she wanted a longer line so she added to it. In the end, her line was 31 cm long. How many centimeters did she add? Write an equation to solve this problem. Include units in your answer.
31-13=18
18 cm
Write two Half Facts.
Ex: 18-9=9, 10-5=5, 14-7=7, 12-6=6
The book is 15 cm long. The book is 7 cm longer than the pencil. How long is the pencil?
Write an equation to represent this situation AND solve WITH units.
7+___=15
8cm
Write 2 different equations with a difference of 4.
Answers will vary.
Ex: 10-6=4, 12-8=4, 6-2=4, 5-1=4
Fill in the missing number in this equation.
18= ____ + 5
13
Jack wanted to measure his desk. One side of his desk was 57 cm long and the next side was 84 cm long. How much longer was the second side than the first side? Write an equation to solve this problem. Include units in your answer.
84-57=27
27cm
Hannah says 5+6 is a doubles plus on fact. Do you agree? Why or why not?
Yes. 5+5 is a doubles fact. 5+6 is 1 more than 5+5, so it's a doubles plus one fact
First an ant walked 17 cm, then 23 cm, then 31 cm, then 18 cm. How far did the ant walk in all? Include units in your answer.
89 cm
Write 3 different equations with a sum of 17.
Answers will vary.
Ex: 10+7=17, 9+8=17, 15+2=17
Fill in the missing number in this equation.
3+6+4+5=
18
Sara has 79 pieces of candy in her bag. 46 pieces were chocolate and the rest were not chocolate. How many pieces of candy were not chocolate in her bag? Write an equation to solve this problem.
79-46=33
33 pieces
Are doubles fact all even, odd, or both? Explain.
Always even.
Examples: 2+2=4, 4+4=8, 7+7=14, 9+9=18
The paper is 32 cm long. The book is 12 cm longer than the marker. How long is the marker?
Write an equation to represent this situation AND solve WITH units.
20cm
Write 3 different equations with a difference of 13.
Answers will vary.
Ex: 20-7=13, 15-2=13, 19-6=13, 14-1=13
Fill in the missing number in this equation.
16+____=14+9
7
The coach has 113 balls in her bag. 68 balls were golf balls and the rest were ping pong balls. How many ping pong balls were in her bag? Write an equation to solve this problem.
113-68=45
45 ping pong balls
How can you use a Make Ten fact to help solve 9+7? Include the answer to 9+7 in your explanation.
9+7 is the same as 10+6 if you take the 1 from the 7 and give it to the 9, and 10+6=16
The book is 47 mm long. The book is 19 mm longer than the pencil. How long is the pencil?
Write an equation to represent this situation AND solve WITH units.
19+___=47
28mm
Write 3 different equations with a sum of 25.
Answers will vary.
Ex: 20+5=25, 19+6=25, 10+15=25, 24+1=25
Fill in the missing number in this equation.
12+___+3 = 14+5+7
11
Maria and Mark both read an entire chapter book over the weekend. On Saturday, Maria read 127 pages. On Sunday, she read 208 pages. On Saturday, Mark read 179 pages. On Sunday, he read 164 pages. Who read more pages over the weekend? How many more pages did they read? Show your work.
Maria 127+208=335
Mark 179+164=343
343-335=8
Mark read 8 more pages than Maria.
Write an example of each fact:
Make Ten
Add 9
Doubles
Doubles Plus/Minus 1
Half Fact
Examples:
6+4=10
8+8=16
6+7=13
12-6=6