Free addition game online for kids/ interactive math games to play with no download: Easy to hard addition exercise - online activity for 5th, 6th, 7th, 8th, 9th grade, math games for middle school classroom students, elementary/ primary school age children. Math practice tests for PC, Ipad, Mac.
Rating: 4.9/10 - 26 votes

An online learning activity for kids who enjoy to add and subtract numbers – Kilogranimals is an online math game for kids of about middle school age where you have to match the weight of five different animals using your addition (mainly) and subtraction (in your head) math skills. In each level, you are given the weight of a cute animal on one side of the scales. Your job is to match that weight by adding up the various different Weights that you are given on the other side of the scales.

However, you’d better get moving – as you play against the clock! You only have 30 seconds to complete each puzzle or else you lose out on bonus points. There are 5 increasingly difficult math addition problems that you have to complete. Learn also about different weight categories – grams and kilograms; One kilogram is approximately equal to 2.20 pounds. Ready Math Whizz? Let’s get calculating!

How to Play: In each of the 5 levels, you are shown the weight of an animal on the left side of the game screen. The animal’s weight is shown in kilograms (kgs) underneath the picture of the animal. You have to use the various different Weights at the bottom of the game screen to match the animal’s weight. Each one of these little Weights has a different value indicated on them. Using your computer mouse, Left Click and drag the individual Weights to the circular Slots on the right hand side of the game screen.

Each time you place one of the Weights into a Slot, the total of your side of the scales is shown underneath. When you have matched the animals weight, click ‘Check’ at the bottom of the game screen to progress. In the last levels, there are more Slots and Weights to choose from, which makes it more difficult to get the right balance. You can add and remove Weights as many times as you like to get the correct combination. The clock is ticking on the left hand side of the game area. Complete the sum before the clock runs out to earn bonus points. If you click ‘Check’ when the weight of the two sides doesn’t match, you have to replay the level.

Tip: Don’t be fooled by the different weight categories, like grams and kilograms. Remember, there are 1000 grams in a kilogram. If one of your Weights has 15,000gs written on it, that means it is equal to 15kgs.

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