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
77 − 10 = ______
17 + 20 = ______
75 − 10 = ______
53 − 10 = ______
80 − 10 = ______
64 + 10 = ______
64 − 10 = ______
73 − 10 = ______
83 + 10 = ______
80 + 10 = ______
1 × 10 = ______
56 + 20 = ______
8 × 10 = ______
19 + 20 = ______
9 × 10 = ______
46 + 10 = ______
3 × 10 = ______
16 + 20 = ______
88 − 10 = ______
52 − 10 = ______
