Spooky Subtraction
305 - 178 = y
y= 127
1,205 + 1,678 = b
40 x 60 = p
p = 2,400
Estimate.
1,422 + 3,912 = z
z= 5,000
or
z= 5,300
Estimate.
11 x 19 = r
10 x 20 = 200
r = 200
1,205 - 678 = y
y = 527
2,304 + 1,456 = b
b = 3,796
20 x 15 = p
p = 300
Estimate.
9,782 - 3,899= z
z= 6,000
or
z= 5,900
23,621 + 3,492 = r
r = 26,113
4,800 - 2,356 = y
y = 2,444
45,678 + 10,321 = b
b= 55,999
23 x 14 = p
p = 322
Estimate.
21 x 49 = z
z= 1,000
10,000 - 466 = r
r = 534
100,203 - 45,678 = y
y = 54,525
11,672 + 88,328 = b
b = 100,000
34 x 27= p
p = 918
Estimate this equation TWO different ways.
24 x 13 = z
z= 250
or
z= 200
or
z = 240
or
z= 260
3,000 x 100 = r
r = 300,000
On Halloween night, Ms Boudrot and Ms. Slater went trick-or-treating together. They counted up their candy altogether and got 2,078 pieces. Ms. Slater had 924 pieces of candy from her bag, so how much candy did Ms. Boudrot get?
Ms. Boudrot got 1,154 pieces of candy.
Ms. Boudrot, Mrs. Slater, and Mrs. Narice all made their own Halloween costumes this year. Mrs. Slater spent 900 hours making her costume. Mrs. Narice spent 1,279 hours making her costume. Ms. Boudrot spent 678 hours making her costume. How many hours did it take altogether to make their costumes?
2,857 hours
Ms. Boudrot has 8 cups of witch's brew everyday. Mrs. Slater has 9 cups of witch's brew everyday. How many cups of witch's brew do they have altogether after 12 days?
204 cups of witch's brew
After trick-or-treating, all of your teachers got together and ate chocolate for hours. Ms. Boudrot ate 3,456 pounds of chocolate, Ms. Slater ate 3,912 pounds of chocolate, Ms. Narice at 2,104 pounds of chocolate, and Dr. Allen at 7,967 pounds of chocolate. ABOUT how many pounds of chocolate did they eat in all?
56 x 78 = r
r = 4,368