You got:
14.33 | + | (1 x 10) | = | 21.23 |
time | + | (wrong x 10) | = | score |
3 scores max per player; No foul language, show respect for other players, etc.
Name | Score | Date | ||
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1 | ||||
2 | ||||
3 | ||||
4 | ||||
5 | ||||
6 | ||||
7 | ||||
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9 | ||||
10 |
Game: ROCK FALL
Aim: Smash all the falling rocks
Method:
Click / tap on each falling rock. Answer the question in the box as quickly as you can.
There are only 4 questions in this game so it is quite short... if you can get those rocks!
Your final score is based on number of questions answered right / wrong, and the time taken.
5th grade / Add + Subtract / Checking answers / Check additions using inverse operations
In this topic you are asked to select the correct inverse operation to use to check the given addition sum.
Inverse operations are pairs of operations that "undo" each other. For example, addition and subtraction are inverse operations, as are multiplication and division. To use inverse operations to check addition sums, you can perform the opposite operation to the addition, which should result in the original number you started with.
Let's say you have the addition problem: 25 + 7 and your answer is 32.
To check this problem using inverse operations, you can perform the opposite operation to addition, which is subtraction. So, you can subtract 7 from the answer to get back to the original number:
25 + 7 = 32
32 - 7 = 25
If the answer you get from subtracting the two numbers is the same as the number you started with (in this case, 25), then you know that your original addition problem was correct.
You can use inverse operations to check more complex addition problems. For example:
96 + 14 = 110
110 - 14 = 96
In each question you are given an addition equation. You are asked to choose from a selection of 3 equations the inverse equation that will confirm the addition is correct.
With our Rock fall math game you will be practicing the topic "Check additions using inverse operations" from 5th grade / Add + Subtract / Checking answers. The math in this game consists of 16 questions that ask you to choose the inverse operations that correctly check these additions.
ROCK FALL is based on the road traffic warning sign for falling rocks - a sign that seems a bit less useful than somebody getting up there on that cliff and actually doing something about it... Anyway, the rocks are falling and it is your job to stop them hitting the road below, or at least stopping them hitting the road below too many times and breaking it. Smash the rocks by clicking or tapping on them (not so easy in real life of course) - they will turn into snowflakes and float gently down into nothing.
There are 4 rocks to stop and not much time to do it (if you want to get a good score and get on the leaderboard). This game is fun and fast and requires good reflexes and a good strategy. Plan to break the smaller rocks first if you want a good score because the rocks fall faster as the game progresses. It also helps to decide where on their path you plan to click / tap the rocks.
UXO * Duck shoot * The frog flies * Pong * Cat and mouse * The beetle and the bee
Rock fall * Four in a row * Sow grow * Choose or lose * Mix and match
There are rocks falling from an unstable cliff. You need to break the rocks by clicking / tapping on them...
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