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
24 + 20 = ______
44 − 10 = ______
59 + 20 = ______
47 + 20 = ______
62 + 10 = ______
22 + 10 = ______
76 − 10 = ______
38 + 20 = ______
8 × 10 = ______
99 − 10 = ______
1 × 10 = ______
27 + 10 = ______
85 − 10 = ______
27 − 10 = ______
4 × 10 = ______
53 − 10 = ______
83 + 20 = ______
9 × 10 = ______
87 − 10 = ______
61 + 10 = ______
