Ballpark Estimate
34+46=
30+ 50= 80
Dezi needed 20 juice boxes for his class party. He bought 22. How many extra juice boxes did he have?
2 juice boxes
Fish E is 40 inches long. Fish F is 30 inches long. How much longer is Fish E than Fish F?
10 inches long
Ms. Rivera has 5 pencils. Ms. Rodriguez had 8 pencils. Ms. Bailey has 6 pencils. Who has the most pencils?
Ms. Rodriguez
Use partial sums to solve: 52+22=
74
22+76=
20+80=100
The green ribbon is 15 feet long. The white ribbon is 10 feet long. Which is longer? Please write a number model.
The green ribbon. It is 5 feet longer.
The giraffe is 13 feet tall when it is standing. Its legs are 6 feet long. How tall is the giraffe when it is lying down?
7 feet tall
Ms. Rivera has 5 pencils. Ms. Rodriguez had 8 pencils. Ms. Bailey has 6 pencils. How many pencils does Ms. Bailey and Ms. Rivera have all together?
11 pencils
Make a 7 by 3 array
various answers
66+31=
70+30=100
Deagan had 6 yards of rope. He found 8 more yards in the garage. He cut off 5 yards for his project. How many yards does he have now?
Show your work!
He has 9 yards now.
Siana has 5 erasers. Ms. Rodriguez gives her 7 more. How many does she have now?
12 erasers
Ms. Rivera has 5 pencils. Ms. Rodriguez had 8 pencils. Ms. Bailey has 6 pencils. How many pencils are there in all?
19 pencils
Use partial sums to solve: 89+30=
119
159+27=
160+30=190
Andy has 15 pieces of bubblegum. He gives 3 pieces away. He wins 4 pieces from Mr. Cron. How many pieces of bubble gum does he have now?
16 pieces
Julian earned 45 stickers. On Tuesday he got 30 stickers. On Wednesday he got some stickers. How many stickers did he get on Wednesday?
15 stickers
Ms. Rivera has 5 pencils. Ms. Rodriguez had 8 pencils. Ms. Bailey has 6 pencils. How many more pencils does Ms. Rodriguez have than Ms. Rivera?
3 more pencils
Use base 10 blocks to solve. 63-32
31
182+32=
180+30=210
Tony has 12 pairs of shoes at home. He gives some away to a friend. Tony is left with 4 pairs of shoes. How many did he give away?
He gave 8 pairs away.
In the morning it was 47 degrees. In the afternoon it was 68 degrees. How much did the temperature increase by?
21 degrees
Ms. Rivera has 5 pencils. Ms. Rodriguez had 8 pencils. Ms. Bailey has 6 pencils. Make a bar graph using this information.
students should have a labeled and accurate bar graph
Use partial sums to solve 73 + 12=
85