Go through the Spectrum Math Grade 2 Answer Key Chapter 4 Posttest and get the proper assistance needed during your homework.
Spectrum Math Grade 2 Chapter 4 Posttest Answers Key
Add.
Answer:
Add the ones 2 and 8 we get 10.
1 will be carried to the tens place.
Add the tens 1, 4, and 1 we get 6.
The sum is 60.
Answer:
Add the ones 9 and 5 we get 14.
1 will be carried to the tens place.
Add the tens 1 and 7 we get 8.
The sum is 84.
Answer:
Add the ones 5 and 7 we get 12.
1 will be carried to the tens place.
Add the tens 1 and 8 we get 9.
The sum is 92.
Answer:
Add the ones 4 and 9 we get 13.
1 will be carried to the tens place.
Add the tens 1, 4 and 2 we get 7.
The sum is 73.
Answer:
Add the ones 5 and 7 we get 12.
1 will be carried to the tens place.
Add the tens 1, 1 and 2 we get 4.
The sum is 42.
Answer:
Add the ones 5 and 8 we get 13.
1 will be carried to the tens place.
Add the tens 1, 3 and 2 we get 6.
The sum is 63.
Answer:
Add the ones 5 and 5 we get 10.
1 will be carried to the tens place.
Add the tens 1, 2 and 5 we get 8.
The sum is 80.
Answer:
Add the ones 4 and 9 we get 13.
1 will be carried to the tens place.
Add the tens 1, 3 and 1 we get 4.
The sum is 43.
Answer:
Add the ones 3 and 9 we get 12.
1 will be carried to the tens place.
Add the tens 1 and 6 we get 7.
The sum is 72.
Answer:
Add the ones 4 and 9 we get 13.
1 will be carried to the tens place.
Add the tens 1, 2 and 3 we get 6.
The sum is 63.
Answer:
Add the ones 7 and 6 we get 13.
1 will be carried to the tens place.
Add the tens 1 and 4 we get 5.
The sum is 53.
Answer:
Add the ones 2 and 8 we get 10.
1 will be carried to the tens place.
Add the tens 1, 1 and 3 we get 4.
The sum is 40.
Answer:
Add the ones 7 and 6 we get 13.
1 will be carried to the tens place.
Add the tens 1, 5 and 2 we get 8.
The sum is 83.
Answer:
Add the ones 1 and 9 we get 10.
1 will be carried to the tens place.
Add the tens 4, 1 and 1 we get 6.
The sum is 60.
Answer:
Add the ones 6 and 8 we get 14.
1 will be carried to the tens place.
Add the tens 1 and 1 we get 2.
The sum is 24.
Subtract.
Answer:
Subtract the ones:
By subtracting 4 from 3 is not possible, So take borrow from the tens place.
Then it is 13 – 4 = 9.
Subtract the tens:
By subtracting 4 from 7 we get 3.
Answer:
Subtract the ones:
By subtracting 9 from 8 is not possible, So take borrow from the tens place.
Then it is 18 – 9 = 9.
Subtract the tens:
By subtracting 5 from 5 we get 0.
Answer:
Subtract the ones:
By subtracting 8 from 3 is not possible, So take borrow from the tens place.
Then it is 13 – 8 = 5.
Subtract the tens:
By subtracting 3 from 6 we get 3.
Answer:
Subtract the ones:
By subtracting 4 from 0 is not possible, So take borrow from the tens place.
Then it is 10 – 4 = 6.
Subtract the tens:
By subtracting 2 from 2 we get 0.
Answer:
Subtract the ones:
By subtracting 9 from 5 is not possible, So take borrow from the tens place.
Then it is 15 – 9 = 6.
Subtract the tens:
By subtracting 3 from 5 we get 2.
Answer:
Subtract the ones:
By subtracting 5 from 3 is not possible, So take borrow from the tens place.
Then it is 13 – 5 = 8.
Subtract the tens:
By subtracting 3 from 4 we get 1.
Answer:
Subtract the ones:
By subtracting 9 from 5 is not possible, So take borrow from the tens place.
Then it is 15 – 9 = 6.
Subtract the tens:
By subtracting 0 from 0 we get 0.
Answer:
Subtract the ones:
By subtracting 8 from 7 is not possible, So take borrow from the tens place.
Then it is 17 – 8 = 9.
Subtract the tens:
By subtracting 1 from 3 we get 2.
Answer:
Subtract the ones:
By subtracting 7 from 5 is not possible, So take borrow from the tens place.
Then it is 15 – 7 = 8.
Subtract the tens:
By subtracting 3 from 6 we get 3.
Answer:
Subtract the ones:
By subtracting 8 from 6 is not possible, So take borrow from the tens place.
Then it is 16 – 8 = 8.
Subtract the tens:
By subtracting 1 from 1 we get 0.
Answer:
Subtract the ones:
By subtracting 6 from 4 is not possible, So take borrow from the tens place.
Then it is 14 – 6 = 8.
Subtract the tens:
By subtracting 4 from 7 we get 3.
Answer:
Subtract the ones:
By subtracting 4 from 0 is not possible, So take borrow from the tens place.
Then it is 10 – 4 = 6.
Subtract the tens:
By subtracting 3 from 5 we get 2.
Answer:
Subtract the ones:
By subtracting 9 from 6 is not possible, So take borrow from the tens place.
Then it is 16 – 9 = 7.
Subtract the tens:
By subtracting 2 from 6 we get 4.
Answer:
Subtract the ones:
By subtracting 3 from 2 is not possible, So take borrow from the tens place.
Then it is 12 – 3 = 9.
Subtract the tens:
By subtracting 4 from 4 we get 0.
Answer:
Subtract the ones:
By subtracting 7 from 2 is not possible, So take borrow from the tens place.
Then it is 12 – 7 = 5.
Subtract the tens:
By subtracting 2 from 3 we get 1.
Solve each problem.
Yumi picks 50 
.
Kris picks 38 . They use 10 to make a fruit salad.
How many do they have left? _______
Answer:
Given that,
Yumi picks 50 oranges.
Kris picks 38 oranges.
The total number of oranges is 50 + 38 = 88.
The number of oranges used is 10.
The number of oranges left is 88 – 10 = 78.
Therefore the number of oranges left is 78.
The farm stand has two kinds of 
.
It has 57 of one kind and 39 of the other kind.
How many does the farm stand have in all? _______
Answer:
Given that,
There are two kinds of apples.
One kind of apples are 57.
And another kind of apples are 39.
The total number of apples that the farm stand have in all is 57 + 39 = 96.
Ayisha buys 60 
, and
51 of them are ripe.
How many of the are not ripe? _____
Answer:
Given that,
Ayisha buys 60 strawberries.
51 of them are ripe.
The total number of strawberries that not ripe is 60 – 51 = 9.
Therefore the number of strawberries that not ripe is 9.
Nick picks 42 
. ‘42 – 18 = 
He sells 18 at the farm stand.
How many does Nick have left? _____
Answer:
Given that,
Nick picks 42 apples.
He sell 18 apples from them.
The number of apples left is 42 – 18 = 24.
Therefore the number of apples left is 24.
The farm stand sells 37 
on Saturday and 29 on Sunday. How many does it sell in all? _________
Answer:
Given that,
The farm stand sells 37 oranges on Saturday.
And 29 oranges on Sunday.
The total number of oranges are 37 + 29 = 66.
Therefore the number of oranges are 66.