Which of the following statements show correct ways to find 7×198
? Select all that apply.
(1 point)
Responses
7×198=(7×200)+(7×2)
7 × 198 = 7 × 200 + 7 × 2
7×198=(7×200)−(7×2)
7 × 198 = 7 × 200 - 7 × 2
7×198=(7+100)×(7+90)×(7+8)
7 × 198 = 7 + 100 × 7 + 90 × 7 + 8
7×198=(7×100)×(7×90)×(7×8)
7 × 198 = 7 × 100 × 7 × 90 × 7 × 8
7×198=(7×100)+(7×90)+(7×8)
7 × 198 = 7 × 100 + 7 × 90 + 7 × 8
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The correct ways to find 7×198 are:
7×198=(7×200)+(7×2)
7 × 198 = 7 × 200 + 7 × 2
7×198=(7×100)+(7×90)+(7×8)
7 × 198 = 7 × 100 + 7 × 90 + 7 × 8
Which expression shows how to use breaking apart to find 7×593
?
(1 point)
Responses
(7×500)+(7×90)+(7×3)
7 × 500 + 7 × 90 + 7 × 3
(7×50)+(7×90)+(7×30)
7 × 50 + 7 × 90 + 7 × 30
(7×500)+(7×9)+(7×3)
7 × 500 + 7 × 9 + 7 × 3
(7×5)+(7×9)+(7×3)
(7×500)+(7×90)+(7×3)
7 × 500 + 7 × 90 + 7 × 3
Jim has 300 marbles. Charlene has twice as many marbles as Jim. If Jim buys 100 more marbles, how many marbles would they have in all?
(1 point)
Responses
800
800
900
900
1,000
1,000
1,200
If Jim has 300 marbles and Charlene has twice as many as Jim, then Charlene has 2 * 300 = 600 marbles.
If Jim buys 100 more marbles, then he would have a total of 300 + 100 = 400 marbles.
If Charlene doesn't buy any more marbles, then she would still have 600 marbles.
Therefore, in total, they would have 400 + 600 = 1000 marbles.
Which of the following expressions correctly use mental math to find 4×59
? Select all that apply.
(1 point)
Responses
(4×60)−(4×1)
( 4 × 60 ) - ( 4 × 1 )
4×(50×9)
4 × ( 50 × 9 )
4+(50×9)
4 + ( 50 × 9 )
(4×50)+(4×9)
( 4 × 50 ) + ( 4 × 9 )
4+50+9
The expressions that correctly use mental math to find 4×59 are:
(4×50)+(4×9)
4 + 50 + 9
Find the product of 9 and 583.
(1 point)
Responses
64
64
592
592
5,247
5,247
5,347
The product of 9 and 583 is 5,247.
The height of one mountain is 199 yards. Another mountain is 6 times as tall.
What is the height of the second mountain?
(1 point)
Responses
1,294 yards
1,294 yards
1,393 yards
1,393 yards
995 yards
995 yards
1,194 yards
1,194 yards