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
46 + 20 = ______
13 + 10 = ______
43 − 10 = ______
95 − 10 = ______
58 + 20 = ______
87 + 10 = ______
24 − 10 = ______
52 + 10 = ______
9 × 10 = ______
77 + 20 = ______
64 + 10 = ______
4 × 10 = ______
24 + 20 = ______
72 + 10 = ______
56 − 10 = ______
18 + 20 = ______
31 + 20 = ______
87 − 10 = ______
8 × 10 = ______
30 − 10 = ______
