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
22 − 10 = ______
85 − 10 = ______
27 − 10 = ______
1 × 10 = ______
36 + 20 = ______
32 − 10 = ______
24 + 10 = ______
81 + 20 = ______
98 − 10 = ______
31 − 10 = ______
94 − 10 = ______
18 + 10 = ______
22 + 20 = ______
6 × 10 = ______
71 − 10 = ______
3 × 10 = ______
12 + 20 = ______
87 + 10 = ______
83 − 10 = ______
41 + 10 = ______
