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
87 − 10 = ______
41 − 10 = ______
9 × 10 = ______
80 + 20 = ______
34 − 10 = ______
80 + 10 = ______
86 − 10 = ______
6 × 10 = ______
53 + 20 = ______
16 + 10 = ______
7 × 10 = ______
29 − 10 = ______
27 − 10 = ______
18 + 10 = ______
33 + 20 = ______
14 + 10 = ______
64 + 10 = ______
36 − 10 = ______
4 × 10 = ______
94 − 10 = ______
