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
16 + 10 = ______
86 + 20 = ______
8 × 10 = ______
38 + 10 = ______
79 − 10 = ______
36 + 20 = ______
13 + 20 = ______
89 − 10 = ______
9 × 10 = ______
12 + 20 = ______
48 + 20 = ______
20 + 20 = ______
61 − 10 = ______
58 + 10 = ______
80 + 10 = ______
3 × 10 = ______
37 + 20 = ______
80 − 10 = ______
7 × 10 = ______
73 − 10 = ______
