This handy Math in Focus Grade 2 Workbook Answer Key End-of-Year Review detailed solutions for the textbook questions.

Test Prep

Multiple Choice

Fill in the circle next to the correct answer.

Question 1.
Which of the following is correct?
(A) In 345, the digit 3 is in the ones place.
(B) In 345, the digit 5 is in the ones place.
(C) In 345, the digit 5 is in the tens place.
(D) In 345, the digit 4 is in the hundreds place.
(B) In 345, the digit 5 is in ones place.

Explanation:
In the number 345
3 is in hundreds place
4 is in tens place and
5 is in ones place.

Question 2.
What comes next? 5, 15, 25 __________.
(A) 0
(B) 10
(C) 35
(D) 50
(C) 35

Explanation:
The pattern of the numbers is skip by 10
So, after 25 the next number is 35
The pattern is 5, 15, 25, 35.

Question 3.
The sum of 500 and 43 is ____________.
(A) 345
(B) 354
(C) 435
(D) 543
(D) 543

Explanation:
500 + 43  543
The sum of 500 and 43 is 543.

Question 4.
Farmer Ben has 456 chickens. He has 336 ducks. What is the difference between the number of chickens and ducks?
(A) 130
(B) 120
(C) 576
(D) 932
(B) 120

Explanation:
Farmer Ben has 456 chickens
He has 336 ducks
456 – 336 = 120
So, the difference of 456 and 336 is 120.

Question 5.

How many groups of 5 can you make?
(A) 2
(B) 4
(C) 5
(D) 10

Explanation:
I drew circles to make groups of 5

Question 6.
Rope A is 45 feet long. Rope B is 71 feet long. How much longer is Rope B than Rope A?
(A) 26 ft
(B) 34 ft
(C) 36 ft
(D) 116 ft

Explanation:
Rope A is 45 feet long
Rope B is 71 feet long
71 – 45 = 21
So, Rope B is 21 feet long than Rope A.

Question 7.
(A) 3 kg
(B) 442 kg
(C) 81 g
(D) 4300 g

Explanation:
4300 g is 4.3 kg
So, Roma could weigh 4.3g
The other weights are too less or too high than weight of a baby
So, Roma weighs about 4300 g.

Question 8.
137 + 40 = _________.
(A) 177
(B) 187
(C) 237
(D) 277

Explanation:
The sum of 137 and 40 is 177
So, 137 + 40 = 177.

Question 9.

Which is the correct amount of money shown?
(A) $16.00 (B)$20.50
(C) $16.24 (D)$19.34
(C) $16.24 Explanation: There are 10, 5 and 1$ currency notes
$10 + 5 + 1 = 16 There are four 1 cent coins 4 x 1 = 4 cents There are four 5 cent coins 4 x 5 = 20 cents So,$ 16 + 20 cents = $16.24. Question 10. Angeline got home at 6:20 P.M. Which clock shows the time Angeline got home? Answer: Explanation: I marked option B Angeline got home at 6:20 P.M The clock shows short hands at 6 hours and minutes hand on 4 that means 20 minutes So, clock B shows the time Angeline got home. Question 11. Which has only flat surfaces? (A) a banana (B) a bottle (C) a balloon (D) a square box Answer: (D) a square box Explanation: The options A, B and C are in curve shape Only the option D that is a square box will be with flat surface. Question 12. Yumi buys a violin for$287. She gives the cashier $300. How much change does she get? (A)$20
(B) $17 (C)$23
(D) $13 Answer: Explanation: Yumi buys a violin for$287
She gives the cashier $300 300 – 287 = 13 So, she got a change of$13.

Question 13.

Zach makes some juice. How much does he make?
(A) 1 L
(B) 10 L
(C) 5 L
(D) 12 L
(B) 10 L

Explanation:
The jar hold some amount of liquid
Half of the jar is 5L
Zach fills full jar
So, 5 + 5 = 10L
Zach make a juice of 10L.

Question 14.
Which is a part of a line?

Explanation:
I marked the option B
Only option B is part of a line
The other options are curves.

Question 15.
Which is not divided into equal parts?

Explanation:
I marked the shape that is not divided into equal parts
All the other shapes are divided into equal parts other than a hexagon
So, i marked the hexagon.

Question 16.
What is 345 + 70?

Explanation:
The sum of 345 and 70 is 415
So, 345 + 70 = 415.

Question 17.
☆ stands for 4 people. What does ☆ ☆ ☆ ☆ ☆ ☆ stand for?
24 people

Explanation:
☆ stands for 4 people
There are 6 stars
So, 4 x 6 = 24
Therefore, ☆ ☆ ☆ ☆ ☆ ☆ stands for 24 people.

Question 18.
What is 920 – 80?

Explanation:
The difference 920 and 80 is 840
920 – 80 = 840.

Question 19.
Write an odd number bigger than 80 but smaller than 100.

Question 20.
How many parts of lines and curves are there?

__________ parts of lines
__________ curves
3 parts of lines
3 curves

Explanation:
The above shape has 3 pats of lines and 3 curves.

Question 21.
Joy and Andrew share a pie equally. What fraction of the pie does Andrew eat?

Andrew eats __________ of the pie.

Andrew eats half of the pie

Explanation:
Joy and Andrew share a pie equally
Part of a whole is called fraction
As Joy and Andrew shape the pie equally they must divide the pie in 2 parts
So, each share 1/2 part of pie
Therefore, Andrew eats half of the pie

Question 22.
Joe has $2. He buys a toy for 75¢. How much does he have left?$____________
$1.25 Explanation: Joe has$2
He buys a toy for 75¢
As we know 1$= 100 ¢ 100 – 75 = 25 So, Joe will have$1 and 25¢ left with him.

Question 23.
How many of each shape are there?

Explanation:
In the figure above there are 2 squares, 1 circle, 2 triangles, 1 rectangle and 1 trapezoid
There are 7 shapes in all.

Fill in the blanks.

Question 24.
789 = 7 hundreds __________ tens 9 ones
7 hundreds 8 tens 9 ones

Explanation:
In the number 789 the digit 8 is in tens place
Its value is 80.

Question 25.
The mass of Mary’s bag is about 3 __________ g/kg.
The mass of Mary’s bag is about 3 kg

Explanation:
3 g is as light as a paper
So, the mass of Mary’s bag would be 3 kgs.

Question 26.
Subtract 73 from 100.

Explanation:
The difference of 100 and 73 is 27
So, 100 – 73 = 27.

Question 27.
Draw the hands on the clock to show 9:10.

Explanation:
I drew hands to show on the clock to show 9:10
I drew short hands on 9 to show 9 o clock and long hand on 2 to show 10 minutes.

Draw a part of a line, 4 inches long.

Question 28.

Explanation:
I took an inch ruler, measured the length of 4 units and
I drew a part of line which is 4 inches long.

Complete the number pattern.

Question 29.
820, 840, 860, _______, _______, ________, 940
820, 840, 860, 880, 900, 920, 940.

Explanation:
I skip counted by 20 and completed the number pattern.

Draw what comes next.

Question 30.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
The shape pattern has triangles and circles
So, i drew a triangle to complete the pattern.

Look at the pattern. Check (✓) what comes next.

Question 31.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
I circled the shape that is correct among the 2 to complete the pattern.

Question 32.

Explanation:
Shape pattern occur when a group of shapes are repeated again and again
I circled the shape that is correct among the 2 to complete the pattern.

Extended Response

The picture graph shows the number of storybooks each boy has.

Use the picture graph to fill in the blanks.

Question 33.
How many books does Greg have?
There are ____________ for Greg.
_________ × ___________ = __________
Greg has _________ storybooks.
Greg have 9 story book

Explanation:
Each stands for 3 story books
There are 3 for Greg.
3 x 3 = 9
Greg has 9 storybooks.

Question 34.
How many books do Albert and Anthony have in all?
There are ___________ for Albert and Anthony.
______ × ______ = _________
Albert and Anthony have ___________ books in all.
Albert and Anthony have 18 books in all.

Explanation:
Each stands for 3 story books
There are 4 for Albert
There are 2 for Anthony
4 + 2 = 6
There are 6 for Albert and Anthony.
6 x 3 = 18
Albert and Anthony have 18 books in all.

Question 35.
How many storybooks does the boy with the greatest number of books have?
There are ____________ for __________
______ × ______ = _____________
He has ________ books in all.
Mario has 15 books in all

Explanation:
Each stands for 3 story books
There are 5 for Mario
5 x 3 = 15
Mario has 15 books in all.

Question 36.
How many more books does Mario have than Anthony?
Mario has 5 .
____________ × ____________ = ____________
Anthony has ___________ .
____________ × ___________ = ____________
____________ – ____________ = ___________
Maria has _________ more books than Anthony.
Mario has 9 more books than Anthony

Explanation:
Each stands for 3 story books
Mario has 5
5 x 3 = 15
Anthony has 2
2 x 3 = 6
15 – 6 = 9
Maria has 9 more books than Anthony.

Solve.

Question 37.
Sam has 300 books. He sells 118 books. He lends 55 books to friends. How many books does he have left?
He has __________ books left.

Explanation:
Sam has 300 books
He sells 118 books
He lends 55 books to friends
118 + 55 = 173
300 – 173 = 127
So, He has 127 books left.

Question 38.
Alexandra adds 200 grams of flour. She adds 100 grams of butter. She adds 150 grams of sugar. Then she adds enough milk to make the total mass 1,000 grams. How much milk does she add?
She adds ____________ grams of milk.

Explanation:
Alexandra adds 200 grams of flour
She adds 100 grams of butter
She adds 150 grams of sugar
Then she adds enough milk to make the total mass 1,000 grams
200 + 100 + 150 = 450
1000 – 450 = 550
So, She adds 550 grams of milk.

Question 39.
Abigail has $300. Mabel has$12 more than Abigail.

How much money does Mabel have?
Mabel has $___________. Answer: Mabel has$ 312

Explanation:
Abigail has $300 Mabel has$12 more than Abigail
300 + 12 = 312
So, Mabel have \$312.

Question 40.
381 boys take part in a game. 78 fewer girls than boys take part in the game.

a. How many girls take part in the game?
___________ girls take part in the game.

Explanation:
381 boys take part in a game
78 fewer girls than boys take part in the game
381 – 78 = 303
303 girls take part in the game.

b. How many children take part in the game?
__________ children take part in the game.