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
88 + 10 = ______
30 − 10 = ______
95 − 10 = ______
15 + 10 = ______
17 + 10 = ______
14 + 20 = ______
27 + 20 = ______
30 + 20 = ______
68 − 10 = ______
56 − 10 = ______
79 − 10 = ______
73 + 20 = ______
6 × 10 = ______
86 − 10 = ______
2 × 10 = ______
75 + 20 = ______
8 × 10 = ______
45 + 10 = ______
24 − 10 = ______
34 + 20 = ______
