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
33 + 20 = ______
42 + 10 = ______
45 + 10 = ______
32 + 20 = ______
73 + 10 = ______
65 − 10 = ______
71 − 10 = ______
80 + 20 = ______
55 + 10 = ______
7 × 10 = ______
78 + 10 = ______
8 × 10 = ______
77 − 10 = ______
88 + 10 = ______
6 × 10 = ______
3 × 10 = ______
75 − 10 = ______
44 + 20 = ______
28 − 10 = ______
35 − 10 = ______
