Rekenen met kwadraten
Bereken.
1p
\((-7)^{2}\)
○
\((-7)^{2} = 49 \text{.}\)
1p
Bereken.
1p
\(-(-5)^{2}\)
○
\(-(-5)^{2} = -25 \text{.}\)
1p
Bereken.
1p
\(5 ⋅ (-4)^{2}\)
○
\(5 ⋅ (-4)^{2} = \text{}\)
\(5 ⋅ 16 = 80\)
1p
Bereken.
1p
\((3 ⋅ 2)^{2}\)
○
\((3 ⋅ 2)^{2} = \text{}\)
\(6^{2} = 36\)
1p
Bereken.
2p
\(-(-2)^{2} - 3 ⋅ -5^{2}\)
○
\(-(-2)^{2} - 3 ⋅ -5^{2} = \text{}\)
\(-4 - 3 ⋅ -25 = \text{}\)
1p
○
\(-4 + 75 = 71\)
1p
Bereken.
1p
\(2^{2} + (8 - 3^{2})\)
○
\(2^{2} + (8 - 3^{2}) = \text{}\)
\(4 + (8 - 9) = \text{}\)
\(4 + (-1) = 3\)
1p
Bereken.
2p
\(-3 - (5 - 2)^{2} : 9\)
○
\(-3 - (5 - 2)^{2} : 9 = \text{}\)
\(-3 - 3^{2} : 9 = \text{}\)
\(-3 - 9 : 9 = \text{}\)
1p
○
\(-3 - 1 = -4\)
1p
Bereken.
2p
\(6^{2} : 3 - (7 - 5)^{2} ⋅ 9\)
○
\(6^{2} : 3 - (7 - 5)^{2} ⋅ 9 = \text{}\)
\(6^{2} : 3 - 2^{2} ⋅ 9 = \text{}\)
\(36 : 3 - 4 ⋅ 9 = \text{}\)
1p
○
\(12 - 36 = -24\)
1p