CALLY BOARD

Review

100

The answer to an addition problem

sum

200

The first number in a subtraction problem is called the

Minuend

300

The answer to a subtraction problem

difference

400

The second number in a subtraction problem is called the

Subtrahend

500

Rules in Adding integers 

1. Same Signs → Add and Keep the Sign

2. Different Signs → Subtract and Keep the Sign of the Larger Number  

ROUND 1

100

7 - (-3)

+10

200

−4 − (+6)

-10

300

10 − (−5)

15

400

−8 − (−2)

-6

500

3 − 9

-6

ROUND 2

100

The temperature in Lipa dropped from 35°C to 25°C. What is the change?

The temperature decreased by 10°C.  (-10)

200

A vendor earned ₱500 and lost ₱200. What’s his balance?

The vendor’s balance is ₱300.  

300

Rizal was born in 1861, and independence was declared in 1898. How many years apart?

37 years apart.  

400

You had ₱1,000 savings but borrowed ₱300. How much remains?

₱700 remains.

500

Volleyball team lost 3 points, gained 5.

team gained 2 points overall