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
79 + 20 = ______
8 × 10 = ______
18 + 20 = ______
72 + 20 = ______
59 + 10 = ______
6 × 10 = ______
86 − 10 = ______
28 − 10 = ______
1 × 10 = ______
61 − 10 = ______
48 − 10 = ______
3 × 10 = ______
37 − 10 = ______
63 + 20 = ______
40 + 10 = ______
96 − 10 = ______
36 + 10 = ______
20 + 10 = ______
64 + 20 = ______
14 + 10 = ______
