Week3 Grade4 -revision

1. __________ was the first calculating device .

• a. Napier's bones

• b. ABACUS

• c. barter

______________are kind of small stones.

• a. Basic counting

• b. pebbles

• b. barter

The first calculating device was invented in America.

• a. I do agree

• b. I don't agree

______________is the inventor of Napier's bones .

• a. john Napier

• b. Blaise Pascal.

• c. Charles Babbage

The system of Give and Take is called ____________.

• a. ABACUS

• b. Barter

• c. Napier Bones

ABACUS was invented in ___________.

• a. UAE

• b. China

• c. England

________________is made of a wooden frame with small balls threaded on the rods called beads.

• a. ABACUS

• b. Napier Bones

• c. Basic counting system

_______________ had a set of 11 rectangular rods called bones .

• a. ABACUS

• b. Napier Bones

• c. Pebbles