Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
53 − 10 = ______
48 − 10 = ______
1 × 10 = ______
8 × 10 = ______
34 + 10 = ______
4 × 10 = ______
9 × 10 = ______
24 + 10 = ______
75 − 10 = ______
2 × 10 = ______
62 + 10 = ______
73 − 10 = ______
76 + 10 = ______
19 + 10 = ______
68 + 20 = ______
91 − 10 = ______
53 + 20 = ______
34 − 10 = ______
24 + 20 = ______
26 + 20 = ______
