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
3 × 10 = ______
14 + 20 = ______
5 × 10 = ______
7 × 10 = ______
2 × 10 = ______
16 + 20 = ______
52 − 10 = ______
87 − 10 = ______
43 + 20 = ______
13 + 20 = ______
6 × 10 = ______
78 + 20 = ______
93 − 10 = ______
26 + 20 = ______
39 + 10 = ______
75 + 10 = ______
77 + 10 = ______
43 − 10 = ______
62 + 10 = ______
45 + 20 = ______
