Decimals!
Estimate the product: 5.7 x 43 =
Responses may vary...
Create an expression for...
The sum of 19 and 3 fives
19+(3×5)
Without calculating the values, compare the expressions using <, >, or =
(7+15)×18 ________ 81×(15+7)
(7+15)×18 < 81×(15+7)
Find the products...
21 x 7 =
21 x 70 =
210 x 70 =
210 x 700 =
What is...
147
1,470
14,700
147,000
Estimate the product: 4.3 x 21 =
Show your response...
Write the expression in word form...
25×(10+3)
The sum of ten and three times twenty-five
Twenty-five times the sum of ten and three
Without calculating the values, compare the expressions using <, >, or =
48 x 12 __________ 50 twelves - 3 twelves
48 x 12 > 50 twelves - 3 twelves
Solve: 476×65
30,940
Solve: 4.3 x 21 =
90.3
Create an expression for...
fourteen multiplied by the difference of 55 and 28
14 x (55-28)
Without calculating the values, compare the expressions using <, >, or =
24 × (20+5) __________ (20 + 5) × 12
24 × (20+5) > (20 + 5) × 12
Solve: 958 x 94 =
90,052
Solve: 33.2 x 24 =
796.8
Write an expression for...
The differences between 11 threes and 5 fours
(11 x 3) - (5 x 4)
Without calculating the values, compare the expressions using <, >, or =
61×25 __________ 60 twenty-fives minus 1 twenty-five
61×25 > 60 twenty-fives minus 1 twenty-five
General admission to The American Museum of Natural History is $19. If a group of 125 students visits the museum, how much will the group’s tickets cost?
$2,375
Piper solved this problem incorrectly.
6.2 × 41=6.2 × 41=
Look at her work below and explain what Piper did incorrectly.
- Piper incorrectly wrote 2,522 tenths in standard form.
- Piper set up her model incorrectly.
- Piper’s partial products are not all correct.
- Piper added the partial products incorrectly.
- Piper incorrectly wrote 2,522 tenths in standard form.
- Piper’s partial products are not all correct.
Create an expression and solve...
The sum of thirty doubled and eight doubled
(30 x 2) + (8 x 2)
76
Without calculating the values, compare the expressions using <, >, or =
The difference between 1313 fours and 66 fours __________ The sum of 22 fours and 55 fours
The difference between 1313 fours and 66 fours = The sum of 22 fours and 55 fours
Carpet costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor?
$3,584