Wonderful Words
Meanings
Ten Again
One Hundred Ways
This and That
100
This is the answer when you subtract.
What is a difference?
100
Frankie had 14 Star Wars Movies. Austin had 9. How many more CD's does Frank have? Show the LABELED number sentence.
What is 14-9=5 more CD's?
100
Round these numbers to the nearest 10 and then estimate their difference. 579-214=
What is 580-210=370?
100
Round these numbers to the nearest hundred and then estimate their difference. 579-214=
What is 600-200=400?
100
Tell how you would solve the following on the hundred chart: 95-39=
What is first you should go up three steps or thirty and then go left nine steps for 9 ones to 56? or Go up 4 steps and and to the right once to 56?
200
Name for a group of related facts, using the same numbers.
What is a fact family?
200
Jordy had $12. Katie P had $5. How much more money does Jordy have? Show the LABELED number sentence.
What is 12-5=$7 more?
200
Round these numbers to the nearest 10 and then estimate their difference. 328-207=.
What is 330-210=120
200
Round these numbers to the nearest hundred and then estimate their difference. 342-149=
What is 300-100=200?
200
Tell how you would solve the following on the hundred chart: 77-48.
What is first you should go up four steps or forty and then go left eight steps for 8 ones to 29? or Go up 5 steps and and to the right two steps to 29?
300
We do this to individual numbers to make them easier to work with.
What is rounding?
300
Wilton had 6 tombstones decorating his lawn. Jayson had 17. How many more tombstones does Jayson have? Show the LABELED number sentence.
What is 17-6=11 tombstones?
300
Round these numbers to the nearest 10 and then estimate their difference. 291-96=
What is 290-100=190
300
Round these numbers to the nearest hundred and then estimate their difference. 704-369=
What is 700-400=300?
300
Make a diagram to illustrate the number story. Then solve, estimate and explain if your answer is reasonable. Allie practices her dance moves for 45 minutes each day. Today she practiced for 15 minutes after school and 10 minutes before dinner. How much time does she still need to practice?
What is 45 minutes in all 15 10 20 20+10+?=50 so my answer should be close to 20 minutes. Since my estimate and my answer match, my answer is reasonable!
400
We use rounded numbers to check our work to be sure it is reasonable. This also will give us a "ball park" regarding our sum or difference.
What is an estimate?
400
Abby ate 14 pies. Jacob ate 28. How many more pies did Jacob eat? Show the LABELED number sentence.
What is 28-14=14 pies?
400
Round these numbers to the nearest 10 and then estimate their difference. 5,179-235=
What is 5,180-240=4,940?
400
Round these numbers to the nearest hundred and then estimate their difference. 1,493-126=
What is 1,500-100=1,400?
400
Make a diagram to illustrate the number story. Then solve, estimate and explain if your answer is reasonable. The Ravens scored 49 points in last week's game. This week they scored 62 points. How many points did the Ravens score in all between the two games?
What is 111 points in all 49 62 50+60=110 My answer is reasonable because 111 is close to the estimate of 110 points?
500
These are the numbers we subtract to find a difference.
What are minuends and subtrahends?
500
Katie D baked 36 delicious cookies. Mrs. Pierce and Mrs Schubert ate 12 of them together. How many cookies are left for Katie to share with the rest of the class? Show the LABELED number sentence.
What is just enough? Kidding....36-12=24 cookies?
500
Round these numbers to the nearest 10 and then estimate their difference. 2,516-875=
What is 2,520-880=1,640?
500
Round these numbers to the nearest hundred and then estimate their difference. 5,672-87=
What is 5,700-100=5,600?
500
Make a diagram to illustrate the number story. Then solve, estimate and explain if your answer is reasonable. Sam drove 348 miles on Monday and 135 miles on Tuesday on his way to Disney World. How much further did he drive on Monday?
What is 348 miles 135 miles 213 miles 350-140=210 My answer is reasonable because 213 miles is close to 210 miles.
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