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
5 × 10 = ______
53 + 20 = ______
49 + 10 = ______
75 + 10 = ______
65 + 10 = ______
99 − 10 = ______
89 + 10 = ______
29 + 10 = ______
36 − 10 = ______
4 × 10 = ______
35 + 20 = ______
1 × 10 = ______
49 + 20 = ______
16 + 10 = ______
49 − 10 = ______
45 + 10 = ______
77 − 10 = ______
51 − 10 = ______
84 − 10 = ______
34 − 10 = ______
