Fish in the sea
(1) Calculate, paying attention to the parentheses
| (500 + 800) + 250 = | (300 + 800) + 100 = | (800 + 700) + 100 = | 711 + (434 + 657) = |
| 973 + (776 + 468) = | 621 + (464 + 240) = | (37 + 10) + 10 = | 6 + (44 + 6) = |
(2) Calculate:
| 45 + = 64 | + 49 = 96 | 60 − = 25 | − 13 = 62 |
| 30 + = 80 | + 58 = 80 | 94 − = 36 | − 74 = 30 |
| 57 + = 98 | + 75 = 98 | 77 − = 38 | − 55 = 31 |
(3) Subtract and check by adding
| 88 − 30 = 58 | since 58 + 30 = 88 | 77 − 40 = | since + 40 = |
| 89 − 40 = | since + 40 = | 94 − 30 = | since + 30 = |
| 51 − 30 = | since + 30 = | 40 − 20 = | since + 20 = |
| 73 − 30 = | since + 30 = | 62 − 30 = | since + 30 = |
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Captain Kristijan went fishing. First, he caught 10 colorful fish in his net. A little later, while sailing past a coral reef, he caught another 800 blue fish.
(a) How many fish did Captain Kristijan catch in total? After that, while returning to the harbor, several seagulls circled above the boat. One seagull grabbed 250 fish from the net.(b) How many fish remained in Captain Kristijan's net? Finally, when he arrived at the harbor, his friend Špiro gave him another 468 small, silver fish that he had caught himself.(c) How many fish does Captain Kristijan have in total now? (d) Additional question below the image (for those who want more) → |
 If Captain Kristijan decided to give half of all his fish to his cat named Perišić Ivan, how many fish would Perišić Ivan receive? |
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