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
80 + 20 = ______
53 + 10 = ______
31 + 10 = ______
72 + 10 = ______
81 − 10 = ______
3 × 10 = ______
4 × 10 = ______
75 + 10 = ______
45 + 10 = ______
93 − 10 = ______
83 − 10 = ______
26 + 20 = ______
44 + 10 = ______
36 − 10 = ______
32 + 20 = ______
12 + 10 = ______
6 × 10 = ______
8 × 10 = ______
63 + 20 = ______
7 × 10 = ______
