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
36 + 20 = ______
49 + 10 = ______
25 + 10 = ______
33 + 20 = ______
1 × 10 = ______
22 + 10 = ______
57 − 10 = ______
21 + 10 = ______
46 + 20 = ______
42 − 10 = ______
86 − 10 = ______
77 − 10 = ______
12 + 10 = ______
6 × 10 = ______
85 + 20 = ______
76 + 10 = ______
77 + 20 = ______
24 − 10 = ______
7 × 10 = ______
35 − 10 = ______
