Math 1A Workbook Review 3 Singapore Part 10

1A Workbook Review 3 

Review 3

 

1. Write the numbers. Then match the numbers and words.

Solution: (Follow the below image for the solution)

2. Check the set that has more.

(a) 🍏. 🍏. 🍏. 🍏. 🍏. 🍏

(b) 🍐. 🍐. 🍐. 🍐. 🍐

Solution:

√ (a) 🍏. 🍏. 🍏. 🍏. 🍏. 🍏

   (b) 🍐. 🍐. 🍐. 🍐. 🍐

 

3. Check the set that has less.

(a) 🐦. 🐦. 🐦. 🐦. 🐦. 🐦. 🐦

(b) 🪁. 🪁. 🪁. 🪁. 🪁

Solution:

    (a) 🐦. 🐦. 🐦. 🐦. 🐦. 🐦. 🐦

√ (b) 🪁. 🪁. 🪁. 🪁. 🪁

 

4. Join each pair of numbers that make 10 (ten).

Solution: (Follow the below image for the solution)

5. Fill in 1^st, 2^nd, 3^rd, 4^th and 5^th to show the order.

Solution: (Follow the below image for the solution)

6. Add or subtract.

(a) 5 + 2 = ___.

(b) 6 + 3 = ___.

(c) 9 – 4 = ___.

(d) 8 – 2 = ___.

(e) 5 + 1 = ___.

(f) 10 – 5 = ___.

Solution:

(a) 5 + 2 = 7.

(b) 6 + 3 = 9.

(c) 9 – 4 = 5.

(d) 8 – 2 = 6.

(e) 5 + 1 = 6.

(f) 10 – 5 = 5.

 

7. Write + or – instead of ⚪.

(a) 8 ⚪ 7 = 1.

(b) 3 ⚪ 7 = 10.

(c) 6 ⚪ 3 = 9.

(d) 9 ⚪ 9 = 0.

(e) 10 ⚪ 2 = 8.

(f) 7 ⚪ 2 = 9.

(g) 5 ⚪ 1 = 4.

(h) 10 ⚪ 8 = 2.

Solution:

(a) 8 - 7 = 1.

(b) 3 + 7 = 10.

(c) 6 + 3 = 9.

(d) 9 - 9 = 0.

(e) 10 - 2 = 8.

(f) 7 + 2 = 9.

(g) 5 - 1 = 4.

(h) 10 - 8 = 2.

 

8.

Sally: I have 6 buttons.

Jane: I have 2 buttons.

How many buttons do they have altogether?

Solution:

6 + 2 = 8.

They have 8 buttons altogether.

 

9.

Peter: I have 4 marbles.

Ali: We have 9 marbles altogether.

How many marbles does Ali have?

Solution:

9 – 4 = 5.

Ali has 5 marbles.