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
6 × 10 = ______
55 + 20 = ______
27 + 10 = ______
5 × 10 = ______
4 × 10 = ______
16 + 10 = ______
37 + 10 = ______
74 − 10 = ______
55 − 10 = ______
18 + 10 = ______
81 + 20 = ______
57 − 10 = ______
37 + 20 = ______
7 × 10 = ______
93 − 10 = ______
74 + 10 = ______
3 × 10 = ______
86 + 10 = ______
74 + 20 = ______
21 + 10 = ______
