There is a house on each corner of the streets. The houses are shown on the map. Two new houses will be built on each street between the corner houses. How many houses will there be in all ?
IKMC Grade 1 - 2
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In a stack of three cards with holes, the top of each card is white and the bottom is grey. Basil threaded these cards on a rope.
After some arrangement of the cards, which situation is possible to obtain without untying the rope ?
There are twelve books on a shelf and four children in a room. How many books will be left on the shelf if each child takes one book ?