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
50 + 20 = ______
35 + 10 = ______
22 + 20 = ______
22 + 10 = ______
6 × 10 = ______
69 + 20 = ______
89 + 10 = ______
47 − 10 = ______
25 − 10 = ______
64 − 10 = ______
3 × 10 = ______
40 + 20 = ______
47 + 20 = ______
14 + 10 = ______
86 + 20 = ______
93 − 10 = ______
76 − 10 = ______
20 + 20 = ______
7 × 10 = ______
85 − 10 = ______
