Write a number in the box to make this number sentence true.
`6 + 8 = 10 +` |
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Write a number in the box to make this number sentence true.
`6 + 8 = 10 +` |
`4`
`6 + 8` | `= 14` |
`= 10 + 4` |
Which one of these gives an answer of 87?
8 + 7 | 80 + 17 | 70 + 17 | 70 + 7 |
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`70 + 17`
`70 + 17 = 87`
A company has 3706 computers in a warehouse.
Another 423 computers are delivered to the warehouse.
Which of these could be used to calculate the correct number of computers in the warehouse?
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3000 + 4000 + 700 + 20 + 6 + 3 |
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3000 + 700 + 400 + 20 + 60 + 3 |
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3000 + 700 + 400 + 20 + 6 + 3 |
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3000 + 400 + 70 + 20 + 6 + 3 |
`3000 + 700 + 400 + 20 + 6 + 3`
`3706 + 423`
`= 3000 + 700 + 6 + 400 + 20 + 3`
`=3000 + 700 + 400 + 20 + 6 + 3`
`44 + 28 =` |
`72`
`44 + 28 = 72`
Write a number in the box to make this number sentence correct.
`18 + 24 >` | `+ 4` |
`text{(Any number < 38)}\ + 4`
`18+24` | `=18+20+4` |
`=38+4` | |
`:.18+24` | `> text{(Any number < 38)}\ + 4` |
John wants to find the answer to `2998 + 1567`.
Which of the following shows a way to get the same answer?
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`3000 + 1566` |
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`3000 + 1565` |
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`3004 + 1500` |
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`3004 + 1600` |
`3000 + 1565`
`text(By adding and subtracting 2:)`
`2998+1567` | `=2998+2+1567-2` |
`=3000 + 1565` |
`26 + 27 =` |
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`43` | `52` | `53` | `413` |
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`53`
`53`
`13 +` | `+ 12 = 53` |
`28`
`text(Deduct 13 and 12 from both sides:)`
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`=53 -13-12` |
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`=28` |
Olivia was the top scorer in her soccer team over two seasons.
In season 1, she scored 25 goals.
In season 2, she scored 35 goals.
Which number sentence could be used to find the total number of goals she scored over both seasons?
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`20 + 30 = 50` |
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`30 + 40 = 70` |
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`20 + 30 + 5 = 55` |
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`20 + 30 + 10 = 60` |
`20 + 30 + 10 = 60`
`25+35` | `=20+5+30+5` |
`=20+30+10` | |
`=60` |
`:. 20 + 30 +10=60`