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
56 + 10 = ______
67 + 10 = ______
30 + 20 = ______
77 − 10 = ______
14 + 20 = ______
15 + 10 = ______
64 + 10 = ______
85 − 10 = ______
52 + 10 = ______
92 − 10 = ______
36 − 10 = ______
24 + 10 = ______
50 − 10 = ______
7 × 10 = ______
80 + 20 = ______
5 × 10 = ______
6 × 10 = ______
87 − 10 = ______
24 − 10 = ______
48 + 10 = ______
