Grade 5 Academic Math U2L4HW1
Homework Practice Summary
0 of 14 Questions completed
Questions:
Information
You have already completed the homework practice before. Hence you can not start it again.
Homework Practice is loading…
You must sign in or sign up to start the homework practice.
You must first complete the following:
Results
Results
0 of 14 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- Current
- Review
- Answered
- Correct
- Incorrect
- Question 1 of 14
1. Question
1. Write an expression to show the number that is 3 times as much as the sum of 40 and 6. Then, find the value
3 × ( 40 + 6)
= 3 × 40 + 3 × 6
= +
=Think: We can use this idea to mentally calculate 3 x 46
CorrectIncorrect - Question 2 of 14
2. Question
2. Write an expression to find the number that is 4 times as much as the difference between 50 and 1. Then, find the value
4 × (50 – 1)
= 4 × 50 – 4 × 1
= –
=Note: is the answer same as 4 × 49?
CorrectIncorrect - Question 3 of 14
3. Question
3. Calculate 4 × 27 with mental math
Hints:
4 × 27 = 4 × (20 + 7) = 4 × (30 – 3) = 4 × (25 + 2)4 × 27 =
CorrectIncorrect - Question 4 of 14
4. Question
4a.
98 × 3
= (100 – 2) × 3
= × 3 – × 3
= –
=
CorrectIncorrect - Question 5 of 14
5. Question
4b.
25 × 49
= 25 × (50 – 1)
= 20 × 50 – 25 × 1
= –
=
CorrectIncorrect - Question 6 of 14
6. Question
4c.
998 × 15
= (1000 – 2) × 15
= 1000 × 15 – 2 × 15
= – 30
=
CorrectIncorrect - Question 7 of 14
7. Question
4d.
126 × 4
= (101 + 25) × 4
= 101 × 4 + 25 × 4
= +
=
CorrectIncorrect - Question 8 of 14
8. Question
5a.
8 × 82 = 8 × (80 + 2 ) =
CorrectIncorrect - Question 9 of 14
9. Question
5b.
9 × 99 = 9 × (100 – 1) =
CorrectIncorrect - Question 10 of 14
10. Question
5c.
32 × 49 = 32 × ( 50 – ) =
CorrectIncorrect - Question 11 of 14
11. Question
5d.
4,998 × 6 = (5,000 – ) × 6=
CorrectIncorrect - Question 12 of 14
12. Question
6a. What sign, >, <, or=, goes in each 〇?
(14 + 27) × 6 〇 8 × (27 + 14)
CorrectIncorrect - Question 13 of 14
13. Question
6b. What sign, >, <, or=, goes in each 〇?
8 × ( 48 – 7) 〇 48 × 8 – 9 × 8
CorrectIncorrect - Question 14 of 14
14. Question
6c. What sign, >, <, or=, goes in each 〇?
9 × 38 – 9 × 9 〇 9 × (38 – 9)
CorrectIncorrect