Singapore Math Level 2A & 2B - Unit 9: Mass - 36 Questions of Mass with Photos
Unit 9: MASS
Fill in each blank with more than or less than. [Here are the 5 pictures given in the first 1-5 questions of Singapore Math Level 2A & 2B - Unit 9: Mass. You will fill in the blanks based on these pictures. We have provided the answers to the 5 questions together in the answer section. Thank you.]
Solution(1-5):
1. The mass of the toy ship is less than 1 kg. [Note: The toy ship rises on the balance, so it is lighter.]
2. The mass of the camera is more than 1 kg. [Note: The camera sinks on the balance, so it is heavier.]
3. The mass of the toy car is less than 4 oz.
4. The mass of the oranges is more than 2 kg.
5. The mass of the boy is more than 50 lb.
Look at each picture carefully. Write the correct mass on the lines provided. [Here are the 5 pictures given in the questions no 6-8 of Singapore Math Level 2A & 2B - Unit 9: Mass. You will write the correct mass based on these pictures. We have provided the answers to the 5 questions (6-8 no) together in the answer section. Thank you.]
Solution(6-10):
6. 3 OZ.
7. 45 lb.
8. 6 OZ.
9. 4 kg.
10. 6 kg.
11. Study the pictures below. Fill in the blanks.
(a) The mass of the watermelon is ….._ kg.
(b) The mass of the bunch of bananas is ….. kg.
(c) The mass of the pineapple is ….. kg.
(d) The …... is the heaviest.
(e) The ……... is the lightest.
(f) Arrange the fruit in order. Begin with the heaviest fruit.
Solution(11):
(a) The mass of the watermelon is 4 kg.
(b) The mass of the bunch of bananas is 5 kg.
(c) The mass of the pineapple is 2 kg.
(d) The bunch of bananas is the heaviest.
(e) The pineapple is the lightest.
(f) Answer: bunch of bananas, watermelon, pineapple
12. Study the pictures below. Fill in the blanks.
(a) Alan has a mass of ___ lb.
(b) Susan has a mass of ___ lb.
(c) Anne has a mass of ____ lb.
(d) _____ is the lightest.
(e) _______ is the heaviest.
(f) Arrange them in order. Begin with the lightest mass.
Solution(12):
(a) Alan has a mass of 171 lb.
(b) Susan has a mass of 135 lb.
(c) Anne has a mass of 36 lb.
(d) Anne is the lightest.
(e) Alan is the heaviest.
(f) Anne, Susan, Alan
Look at each picture carefully. Fill in the blanks.
Solution(13-17):
13.
The mass of each 🝙 is 1 g.
The stapler is 4 g.
14.
The mass of each 🝙 is 1 oz.
The bottle is 6 oz.
15.
The mass of each 🝙 is 1 g.
The dictionary is 20 g.
16.
The mass of each 🝙 is 1 oz.
The toy vase is 9 oz.
17.
The mass of each 🝙 is 1 g.
The calculator is 19 g.
Look at the following kitchen scales. Fill in the blanks. Include the unit in your answer.
Solution(18-21):
18. 200 g
19. 450 g
20. 50 g
21. 380 g
Fill in each blank with the correct answer. Include the unit in your answer.
22.
Solution(22):
200g+100g=300g
500g-300g=200g
The umbrella has a mass of 200g.
23.
Solution(23):
10lb+20lb=30lb
30lb-10lb=20lb
Box B has a mass of 20 lb.
24.
Solution(24):
(a) The basket of oranges has a mass of (20 oz + 20 oz) = 40 oz.
(b) The oranges have a mass of (10 oz + 10 oz) = 20 oz.
(c) The basket has a mass of (40 oz - 20 oz) = 20 oz.
25.
Solution(25):
(a) The teddy bear has a mass of 200 g.
(b) The teddy bear and the doll have a mass of 500 g.
(c) The doll has a mass of (500 g – 200 g) = 300 g.
26. Adam has a pet at home. Fill in each blank. Match the letters to the numbers in the boxes below. Find out what pet Adam has at home.
(a) 14kg + 15kg = 29 kg | M
(b) 20 oz. + 15 oz. = _____| R
(c) 360g + 250g = _____| A
(d) 170 lb. + 360 lb. = ______| S
(e) 415g + 235g = ________| E
(f) 509lb. + 137lb. = ________| T
(g) 816g + 45g = _________| H
861 = ___.
610 = ____.
29 = M
530 = ____.
646 = ____.
650 = ______.
35 = _____.
Solution(26):
(a) 14 kg + 15 kg = 29 kg | M
(b) 20 oz. + 15 oz. = 35 oz. | R
(c) 360g + 250g = 610g | A
(d) 170 lb. + 360 lb. = 530lb | S
(e) 415g + 235g = 650g | E
(f) 509 lb. + 137lb. = 646lb | T
(g) 816g + 45g = 861g | H
861 = H
610 = A
29 = M
530 = S
646 = T
650 = E
35 = R
So, Adam has HAMSTER at home
27. Sam’s birthday is coming soon. Fill in each blank. Match the letters to the numbers to find out what Sam wants for his birthday.
(a) 585oz. – 232oz. = …….. | S
(b) 616 kg – 307 kg = ……. | Z
(c) 900 lb. – 450 lb. = …… | U
(d) 369 kg – 180 kg = ……. | L
(e) 838 lb. – 639 lb. = …….. | E
(f) 620 g – 505 g = …….. | P
(g) 246 oz. – 97 oz. = ……… | Z
115 = ?
450 = ?
309 = ?
149 = ?
189 = ?
199 = ?
353 = ?
Solution(27):
(a) 585oz. – 232oz. = 353oz. | S
(b) 616kg – 307kg = 309g | Z
(c) 900lb. – 450lb. = 450lb | U
(d) 369kg – 180kg = 189kg | L
(e) 838lb. – 639lb. = 199lb | E
(f) 620g – 505g = 115g | P
(g) 246oz. – 97oz. = 149oz | Z
115 = P
450 = U
309 = Z
149 = Z
189 = L
199 = E
353 = S
So, Sam wants PUZZLES for his birthday.
Solve the following story problems. Show your work in the space below. Draw the appropriate models.
28. Juliee uses 50 kilograms of flour, 14 kilograms of sugar, and 13 kilograms of butter to bake 10 cakes. How many kilograms (kg) of ingredients does she use altogether?
Solution(28):
50+14+13 = 77
She uses 77 kg of ingredients altogether.
29. Aidan has a mass of 43 lb. Tom is 10 lb. heavier than Aidan. What is Tom’s mass?
Solution(29):
43+10 =53
Tom’s mass is 53 lb.
30. A contractor uses 83 kilograms of cement and sand to build a wall. If he uses 27 kilograms of sand, how much cement does he use?
Solution(30):
83-27=56
He uses 56 kg of cement.
31. Angelo’s family eats 13 oz. of rice every week. Fatima’s family eats 4 oz. less of rice. How much rice does Fatima’s family eat every week?
Solution(31):
13-4=9
Noah’s family eats 9 oz. of rice every week.
32. Kelly bought 380 gram of meat. She then bought some fish. If the total mass of these two items was 945 gram, how many grams of fish did kelly buy?
Solution(32):
945-380=565
She bought 565 g of fish.
33. Aunt Rebecca bought 3 bags of tomatoes. Each bag had a mass of 2 lb. What was the total mass of the 3 bags of tomatoes?
Solution(33):
3 × 2 lb. = 6 lb.
The total mass of the 3 bags of tomatoes was 6 lb.
34. Colinen bought 20 kg of flour. Each bag of flour had a mass of 5 kg. How many bags of flour did Colinen buy?
Solution(34):
20 ÷ 5 = 4
Colinen bought 4 bags of flour.
35. Priscilla has 10 plums. Each plum has a mass of 4 ounces. What is the total mass of the 10 plums?
Solution(35):
10 × 4 = 40
The total mass of the 10 plums is 40 oz.
36. Mom bought 12 kg of strawberries and divided the strawberries equally into 4 bags. What was the mass of each bag?
Solution(36):
12 ÷ 4 = 3
The mass of each bag of strawberries was 3 kg.