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
60 + 20 = ______
35 + 20 = ______
91 − 10 = ______
45 + 20 = ______
78 + 20 = ______
8 × 10 = ______
5 × 10 = ______
3 × 10 = ______
40 − 10 = ______
36 − 10 = ______
34 + 20 = ______
73 + 20 = ______
53 − 10 = ______
56 + 10 = ______
19 + 20 = ______
4 × 10 = ______
58 − 10 = ______
76 + 20 = ______
26 + 20 = ______
6 × 10 = ______
