SOLUTION: Elearnbuzz worksheet gr2 mental math 1 - Studypool - Free Printable

Let's solve the problems step by step:

Q.1) Fill in the blanks

#### (a) 5 hundred = _______ tens
- Solution:
1 hundred = 10 tens
Therefore, 5 hundred = \( 5 \times 10 \) tens = 50 tens.
Answer: 50

#### (b) Name the month that comes after July
- Solution:
The months of the year are: January, February, March, April, May, June, July, August, September, October, November, December.
The month that comes after July is August.
Answer: August

#### (c) There are _______ tens in fifty.
- Solution:
Fifty can be written as \( 50 \).
Since \( 50 = 5 \times 10 \), there are 5 tens in fifty.
Answer: 5

#### (d) _______ is the sign of minus.
- Solution:
The sign used to represent subtraction or "minus" is the hyphen (-).
Answer: -

#### (e) The shape of a door is _______.
- Solution:
Typically, doors are rectangular in shape.
Answer: Rectangle

#### (f) 140 just comes after _______.
- Solution:
The number that comes just before 140 is 139.
Answer: 139

#### (g) You have _______ fingers and _______ thumbs in two hands.
- Solution:
Each hand has 5 fingers, so two hands have \( 5 \times 2 = 10 \) fingers.
Each hand also has 1 thumb, so two hands have \( 1 \times 2 = 2 \) thumbs.
Answer: 10 fingers and 2 thumbs

#### (h) The number name of 169 is _______.
- Solution:
The number 169 is read as "one hundred sixty-nine."
Answer: One hundred sixty-nine

#### (i) 5 hundreds + 6 tens + 4 ones = _______
- Solution:
- 5 hundreds = \( 5 \times 100 = 500 \)
- 6 tens = \( 6 \times 10 = 60 \)
- 4 ones = \( 4 \times 1 = 4 \)
Adding these together:
\( 500 + 60 + 4 = 564 \)
Answer: 564

#### (j) The successor of 356 is _______.
- Solution:
The successor of a number is the number that comes immediately after it.
The successor of 356 is \( 356 + 1 = 357 \).
Answer: 357

Final Answers

(a) 50
(b) August
(c) 5
(d) -
(e) Rectangle
(f) 139
(g) 10 fingers and 2 thumbs
(h) One hundred sixty-nine
(i) 564
(j) 357

\boxed{50, \text{August}, 5, -, \text{Rectangle}, 139, 10 \text{ fingers and } 2 \text{ thumbs}, \text{One hundred sixty-nine}, 564, 357}