Q. 1 or 2
Write the following as an expression:
50 times the sum of 64 and 36
50 x (64+36)
Write the following in words:
(560 + 440) × 14
The sum of 560 and 440 times 14
Find the value of:
50 X (64+36)
50 X (64+36)
=50x100
=5,000
Solve:
25 × 30 = ________
AND
2.5 × 30
= ________ tenths × 30 = ________
25 × 30 = 750
2.5 × 30
= 25 tenths x 30
=7 50 tenths
= 75.0
For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each.
How much did the school spend in all?
Find the total amount the school paid for 47 sandwiches and 39 bags of chips.
$216.20 + 48.75 = $264.95
Write the following as an expression:
Divide the difference between 1,200 and 700 by 5
(1200-700) ÷ 5
Compare the expression using < , > , or = . Explain how you can determine the answer without calculating.
100 × 8 [ < , > , = ] 25 × (4 × 9)
100 × 8 [ < ] 25 × (4 × 9)
100 × 8 [ < ] (25 × 4) × 9
100 × 8 [ < ] 100 x 9
9 hundreds is 1 more group than 8 hundreds
Find the value of:
(1200-700) ÷ 5
(1200-700) ÷ 5
=500 ÷ 5
=100
Find the product of 514 and 33
16,962
Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 yards of ribbon. At the fabric store, ribbon is sold by the foot. If Jeanne wants to make 84 bows, how many feet of ribbon must she buy?
Figure out how many feet are in 1.5 yards of ribbon. You have to show your work.
4.5 feet
Write the following as an expression:
The sum of 3 fifteens and 17 fifteens
(3x15) + (17x15)
Compare the expression using < , > , or = . Explain how you can determine the answer without calculating.
48 × 12 [ < , > , = ] 50 twelves – 3 twelves
48 × 12 [ > ] 50 twelves – 3 twelves
48 × 12 [ > ] 47 twelves
48 × 12 [ > ] 47 x 12
48 twelves is one more group of twelves than 47
Find the value of:
(3x15) + (17x15)
(3x15) + (17x15)
=45 + 255
= 300
Find the product of 546 and 405
221,130
Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 yards of ribbon. At the fabric store, ribbon is sold by the foot. If Jeanne wants to make 84 bows, how many feet of ribbon must she buy?
Jeanne must buy 378 feet.
Write the following as an expression:
15 times the sum of 14 and 6
15 x (14+6)
BONUS: Compare the expression using < , > , or = . Explain how you can determine the answer without calculating.
24 × 36 [ < , > , = ] 18 twenty-fours, doubled
24 × 36 [ = ] 18 twenty-fours, doubled
24 × 36 [ = ] (18 x 24) x 2
24 × 36 [ = ] (18 x 2) x 24
24 × 36 [ = ] 36 x 24
Find the value of:
15 x (14+6)
15 x (14+6)
= 15 x 20
= 300
For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each.
How much did the school spend in all?
Find the total amount the school paid for 47 sandwiches.
$216.20
Jeanne needed 378 feet of ribbon to make 84 bows.
If the ribbon costs 10¢ per foot, what is the total cost of the ribbon in dollars? Explain your reasoning, including how you decided where to place the decimal.
378 x 10 cents
= 378 x 0.1
= 37 x ⅒
= $37.80
1 tenth of 378 is 37.8. I used a place value chart to shift 378 one place to the left.
Write the following in words:
10 × (250 + 45)
10 times the sum of 250 and 45
Find the value of:
10 × (250 + 45)
10 × (250 + 45)
=10 x 295
= 2950
Find the value of:
(560 + 440) × 14
(560 + 440) × 14
=1,000 x 14
14,000
For a field trip, the school bought 47 sandwiches for $4.60 each and 39 bags of chips for $1.25 each.
How much did the school spend in all?
Find the total amount the school paid for 39 bags of chips.
$48.75
Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 yards of ribbon.
A manufacturer is making 1,000 times as many bows as Jeanne to sell in stores nationwide. Write an expression using exponents to show how many yards of ribbon the manufacturer will need. Do not calculate the total.
(84 x 1.5) x 103